31443993

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{241}}^1$

素因数の和:382

約数の個数: 48

約数和(自身を含む): 55369600

約数和(自身を除く): 23925607

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 109, 133, 171, 241, 327, 399, 723, 763, 981, 1197, 1687, 2071, 2169, 2289, 4579, 5061, 6213, 6867, 13737, 14497, 15183, 18639, 26269, 32053, 41211, 43491, 78807, 96159, 130473, 183883, 236421, 288477, 499111, 551649, 1497333, 1654947, 3493777, 4491999, 10481331, 31443993]

約数ペア:

[(1, 31443993), (3, 10481331), (7, 4491999), (9, 3493777), (19, 1654947), (21, 1497333), (57, 551649), (63, 499111), (109, 288477), (133, 236421), (171, 183883), (241, 130473), (327, 96159), (399, 78807), (723, 43491), (763, 41211), (981, 32053), (1197, 26269), (1687, 18639), (2071, 15183), (2169, 14497), (2289, 13737), (4579, 6867), (5061, 6213)]