20931426

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{887}}^1$

素因数の和:940

約数の個数: 64

約数和(自身を含む): 51148800

約数和(自身を除く): 30217374

約数列:

[1, 2, 3, 6, 9, 18, 19, 23, 27, 38, 46, 54, 57, 69, 114, 138, 171, 207, 342, 414, 437, 513, 621, 874, 887, 1026, 1242, 1311, 1774, 2622, 2661, 3933, 5322, 7866, 7983, 11799, 15966, 16853, 20401, 23598, 23949, 33706, 40802, 47898, 50559, 61203, 101118, 122406, 151677, 183609, 303354, 367218, 387619, 455031, 550827, 775238, 910062, 1101654, 1162857, 2325714, 3488571, 6977142, 10465713, 20931426]

約数ペア:

[(1, 20931426), (2, 10465713), (3, 6977142), (6, 3488571), (9, 2325714), (18, 1162857), (19, 1101654), (23, 910062), (27, 775238), (38, 550827), (46, 455031), (54, 387619), (57, 367218), (69, 303354), (114, 183609), (138, 151677), (171, 122406), (207, 101118), (342, 61203), (414, 50559), (437, 47898), (513, 40802), (621, 33706), (874, 23949), (887, 23598), (1026, 20401), (1242, 16853), (1311, 15966), (1774, 11799), (2622, 7983), (2661, 7866), (3933, 5322)]