21397704

素因数分解:

$2^3\times 3^1\times {\mathrm{891571}}^1$

素因数の和:891580

約数の個数: 16

約数和(自身を含む): 53494320

約数和(自身を除く): 32096616

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 891571, 1783142, 2674713, 3566284, 5349426, 7132568, 10698852, 21397704]

約数ペア:

[(1, 21397704), (2, 10698852), (3, 7132568), (4, 5349426), (6, 3566284), (8, 2674713), (12, 1783142), (24, 891571)]