20953998

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1571}}^1$

素因数の和:1614

約数の個数: 64

約数和(自身を含む): 52819200

約数和(自身を除く): 31865202

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 26, 27, 38, 39, 54, 57, 78, 114, 117, 171, 234, 247, 342, 351, 494, 513, 702, 741, 1026, 1482, 1571, 2223, 3142, 4446, 4713, 6669, 9426, 13338, 14139, 20423, 28278, 29849, 40846, 42417, 59698, 61269, 84834, 89547, 122538, 179094, 183807, 268641, 367614, 388037, 537282, 551421, 776074, 805923, 1102842, 1164111, 1611846, 2328222, 3492333, 6984666, 10476999, 20953998]

約数ペア:

[(1, 20953998), (2, 10476999), (3, 6984666), (6, 3492333), (9, 2328222), (13, 1611846), (18, 1164111), (19, 1102842), (26, 805923), (27, 776074), (38, 551421), (39, 537282), (54, 388037), (57, 367614), (78, 268641), (114, 183807), (117, 179094), (171, 122538), (234, 89547), (247, 84834), (342, 61269), (351, 59698), (494, 42417), (513, 40846), (702, 29849), (741, 28278), (1026, 20423), (1482, 14139), (1571, 13338), (2223, 9426), (3142, 6669), (4446, 4713)]