21356088

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{68449}}^1$

素因数の和:68471

約数の個数: 32

約数和(自身を含む): 57498000

約数和(自身を除く): 36141912

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 68449, 136898, 205347, 273796, 410694, 547592, 821388, 889837, 1642776, 1779674, 2669511, 3559348, 5339022, 7118696, 10678044, 21356088]

約数ペア:

[(1, 21356088), (2, 10678044), (3, 7118696), (4, 5339022), (6, 3559348), (8, 2669511), (12, 1779674), (13, 1642776), (24, 889837), (26, 821388), (39, 547592), (52, 410694), (78, 273796), (104, 205347), (156, 136898), (312, 68449)]