21865788

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{311}}^1$

素因数の和:365

約数の個数: 120

約数和(自身を含む): 67651584

約数和(自身を除く): 45785796

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 31, 36, 42, 54, 62, 63, 81, 84, 93, 108, 124, 126, 162, 186, 189, 217, 252, 279, 311, 324, 372, 378, 434, 558, 567, 622, 651, 756, 837, 868, 933, 1116, 1134, 1244, 1302, 1674, 1866, 1953, 2177, 2268, 2511, 2604, 2799, 3348, 3732, 3906, 4354, 5022, 5598, 5859, 6531, 7812, 8397, 8708, 9641, 10044, 11196, 11718, 13062, 16794, 17577, 19282, 19593, 23436, 25191, 26124, 28923, 33588, 35154, 38564, 39186, 50382, 57846, 58779, 67487, 70308, 78372, 86769, 100764, 115692, 117558, 134974, 173538, 176337, 202461, 235116, 260307, 269948, 347076, 352674, 404922, 520614, 607383, 705348, 780921, 809844, 1041228, 1214766, 1561842, 1822149, 2429532, 3123684, 3644298, 5466447, 7288596, 10932894, 21865788]

約数ペア:

[(1, 21865788), (2, 10932894), (3, 7288596), (4, 5466447), (6, 3644298), (7, 3123684), (9, 2429532), (12, 1822149), (14, 1561842), (18, 1214766), (21, 1041228), (27, 809844), (28, 780921), (31, 705348), (36, 607383), (42, 520614), (54, 404922), (62, 352674), (63, 347076), (81, 269948), (84, 260307), (93, 235116), (108, 202461), (124, 176337), (126, 173538), (162, 134974), (186, 117558), (189, 115692), (217, 100764), (252, 86769), (279, 78372), (311, 70308), (324, 67487), (372, 58779), (378, 57846), (434, 50382), (558, 39186), (567, 38564), (622, 35154), (651, 33588), (756, 28923), (837, 26124), (868, 25191), (933, 23436), (1116, 19593), (1134, 19282), (1244, 17577), (1302, 16794), (1674, 13062), (1866, 11718), (1953, 11196), (2177, 10044), (2268, 9641), (2511, 8708), (2604, 8397), (2799, 7812), (3348, 6531), (3732, 5859), (3906, 5598), (4354, 5022)]