21157992

素因数分解:

$2^3\times 3^2\times {\mathrm{293861}}^1$

素因数の和:293873

約数の個数: 24

約数和(自身を含む): 57303090

約数和(自身を除く): 36145098

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 293861, 587722, 881583, 1175444, 1763166, 2350888, 2644749, 3526332, 5289498, 7052664, 10578996, 21157992]

約数ペア:

[(1, 21157992), (2, 10578996), (3, 7052664), (4, 5289498), (6, 3526332), (8, 2644749), (9, 2350888), (12, 1763166), (18, 1175444), (24, 881583), (36, 587722), (72, 293861)]