21131337705

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{53}}^1\times {\mathrm{1627}}^1$

素因数の和:1767

約数の個数: 96

約数和(自身を含む): 37712138112

約数和(自身を除く): 16580800407

約数列:

[1, 3, 5, 15, 17, 31, 51, 53, 85, 93, 155, 159, 255, 265, 465, 527, 795, 901, 961, 1581, 1627, 1643, 2635, 2703, 2883, 4505, 4805, 4881, 4929, 7905, 8135, 8215, 13515, 14415, 16337, 24405, 24645, 27659, 27931, 49011, 50437, 50933, 81685, 82977, 83793, 86231, 138295, 139655, 151311, 152799, 245055, 252185, 254665, 258693, 414885, 418965, 431155, 756555, 763995, 857429, 865861, 1293465, 1465927, 1563547, 2572287, 2597583, 2673161, 4287145, 4329305, 4397781, 4690641, 7329635, 7817735, 8019483, 12861435, 12987915, 13365805, 21988905, 23453205, 26580299, 40097415, 45443737, 79740897, 82867991, 132901495, 136331211, 227218685, 248603973, 398704485, 414339955, 681656055, 1243019865, 1408755847, 4226267541, 7043779235, 21131337705]

約数ペア:

[(1, 21131337705), (3, 7043779235), (5, 4226267541), (15, 1408755847), (17, 1243019865), (31, 681656055), (51, 414339955), (53, 398704485), (85, 248603973), (93, 227218685), (155, 136331211), (159, 132901495), (255, 82867991), (265, 79740897), (465, 45443737), (527, 40097415), (795, 26580299), (901, 23453205), (961, 21988905), (1581, 13365805), (1627, 12987915), (1643, 12861435), (2635, 8019483), (2703, 7817735), (2883, 7329635), (4505, 4690641), (4805, 4397781), (4881, 4329305), (4929, 4287145), (7905, 2673161), (8135, 2597583), (8215, 2572287), (13515, 1563547), (14415, 1465927), (16337, 1293465), (24405, 865861), (24645, 857429), (27659, 763995), (27931, 756555), (49011, 431155), (50437, 418965), (50933, 414885), (81685, 258693), (82977, 254665), (83793, 252185), (86231, 245055), (138295, 152799), (139655, 151311)]