21000228228

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{163}}^1\times {\mathrm{211}}^1\times {\mathrm{2423}}^1$

素因数の和:2814

約数の個数: 144

約数和(自身を含む): 61354116096

約数和(自身を除く): 40353887868

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 163, 211, 252, 326, 422, 489, 633, 652, 844, 978, 1141, 1266, 1467, 1477, 1899, 1956, 2282, 2423, 2532, 2934, 2954, 3423, 3798, 4431, 4564, 4846, 5868, 5908, 6846, 7269, 7596, 8862, 9692, 10269, 13293, 13692, 14538, 16961, 17724, 20538, 21807, 26586, 29076, 33922, 34393, 41076, 43614, 50883, 53172, 67844, 68786, 87228, 101766, 103179, 137572, 152649, 203532, 206358, 240751, 305298, 309537, 394949, 412716, 481502, 511253, 610596, 619074, 722253, 789898, 963004, 1022506, 1184847, 1238148, 1444506, 1533759, 1579796, 2045012, 2166759, 2369694, 2764643, 2889012, 3067518, 3554541, 3578771, 4333518, 4601277, 4739388, 5529286, 6135036, 7109082, 7157542, 8293929, 8667036, 9202554, 10736313, 11058572, 14218164, 14315084, 16587858, 18405108, 21472626, 24881787, 32208939, 33175716, 42945252, 49763574, 64417878, 83334239, 99527148, 128835756, 166668478, 250002717, 333336956, 500005434, 583339673, 750008151, 1000010868, 1166679346, 1500016302, 1750019019, 2333358692, 3000032604, 3500038038, 5250057057, 7000076076, 10500114114, 21000228228]

約数ペア:

[(1, 21000228228), (2, 10500114114), (3, 7000076076), (4, 5250057057), (6, 3500038038), (7, 3000032604), (9, 2333358692), (12, 1750019019), (14, 1500016302), (18, 1166679346), (21, 1000010868), (28, 750008151), (36, 583339673), (42, 500005434), (63, 333336956), (84, 250002717), (126, 166668478), (163, 128835756), (211, 99527148), (252, 83334239), (326, 64417878), (422, 49763574), (489, 42945252), (633, 33175716), (652, 32208939), (844, 24881787), (978, 21472626), (1141, 18405108), (1266, 16587858), (1467, 14315084), (1477, 14218164), (1899, 11058572), (1956, 10736313), (2282, 9202554), (2423, 8667036), (2532, 8293929), (2934, 7157542), (2954, 7109082), (3423, 6135036), (3798, 5529286), (4431, 4739388), (4564, 4601277), (4846, 4333518), (5868, 3578771), (5908, 3554541), (6846, 3067518), (7269, 2889012), (7596, 2764643), (8862, 2369694), (9692, 2166759), (10269, 2045012), (13293, 1579796), (13692, 1533759), (14538, 1444506), (16961, 1238148), (17724, 1184847), (20538, 1022506), (21807, 963004), (26586, 789898), (29076, 722253), (33922, 619074), (34393, 610596), (41076, 511253), (43614, 481502), (50883, 412716), (53172, 394949), (67844, 309537), (68786, 305298), (87228, 240751), (101766, 206358), (103179, 203532), (137572, 152649)]