21556026

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{167}}^1$

素因数の和:347

約数の個数: 48

約数和(自身を含む): 48117888

約数和(自身を除く): 26561862

約数列:

[1, 2, 3, 6, 9, 18, 71, 101, 142, 167, 202, 213, 303, 334, 426, 501, 606, 639, 909, 1002, 1278, 1503, 1818, 3006, 7171, 11857, 14342, 16867, 21513, 23714, 33734, 35571, 43026, 50601, 64539, 71142, 101202, 106713, 129078, 151803, 213426, 303606, 1197557, 2395114, 3592671, 7185342, 10778013, 21556026]

約数ペア:

[(1, 21556026), (2, 10778013), (3, 7185342), (6, 3592671), (9, 2395114), (18, 1197557), (71, 303606), (101, 213426), (142, 151803), (167, 129078), (202, 106713), (213, 101202), (303, 71142), (334, 64539), (426, 50601), (501, 43026), (606, 35571), (639, 33734), (909, 23714), (1002, 21513), (1278, 16867), (1503, 14342), (1818, 11857), (3006, 7171)]