21903804

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^1\times {\mathrm{15601}}^1$

素因数の和:15627

約数の個数: 48

約数和(自身を含む): 61159840

約数和(自身を除く): 39256036

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 108, 117, 156, 234, 351, 468, 702, 1404, 15601, 31202, 46803, 62404, 93606, 140409, 187212, 202813, 280818, 405626, 421227, 561636, 608439, 811252, 842454, 1216878, 1684908, 1825317, 2433756, 3650634, 5475951, 7301268, 10951902, 21903804]

約数ペア:

[(1, 21903804), (2, 10951902), (3, 7301268), (4, 5475951), (6, 3650634), (9, 2433756), (12, 1825317), (13, 1684908), (18, 1216878), (26, 842454), (27, 811252), (36, 608439), (39, 561636), (52, 421227), (54, 405626), (78, 280818), (108, 202813), (117, 187212), (156, 140409), (234, 93606), (351, 62404), (468, 46803), (702, 31202), (1404, 15601)]