19997337582

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{112571}}^1$

素因数の和:112789

約数の個数: 48

約数和(自身を含む): 44254304640

約数和(自身を除く): 24256967058

約数列:

[1, 2, 3, 6, 9, 18, 71, 139, 142, 213, 278, 417, 426, 639, 834, 1251, 1278, 2502, 9869, 19738, 29607, 59214, 88821, 112571, 177642, 225142, 337713, 675426, 1013139, 2026278, 7992541, 15647369, 15985082, 23977623, 31294738, 46942107, 47955246, 71932869, 93884214, 140826321, 143865738, 281652642, 1110963199, 2221926398, 3332889597, 6665779194, 9998668791, 19997337582]

約数ペア:

[(1, 19997337582), (2, 9998668791), (3, 6665779194), (6, 3332889597), (9, 2221926398), (18, 1110963199), (71, 281652642), (139, 143865738), (142, 140826321), (213, 93884214), (278, 71932869), (417, 47955246), (426, 46942107), (639, 31294738), (834, 23977623), (1251, 15985082), (1278, 15647369), (2502, 7992541), (9869, 2026278), (19738, 1013139), (29607, 675426), (59214, 337713), (88821, 225142), (112571, 177642)]