21377672

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{223}}^1\times {\mathrm{521}}^1$

素因数の和:773

約数の個数: 32

約数和(自身を含む): 42094080

約数和(自身を除く): 20716408

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 223, 446, 521, 892, 1042, 1784, 2084, 4168, 5129, 10258, 11983, 20516, 23966, 41032, 47932, 95864, 116183, 232366, 464732, 929464, 2672209, 5344418, 10688836, 21377672]

約数ペア:

[(1, 21377672), (2, 10688836), (4, 5344418), (8, 2672209), (23, 929464), (46, 464732), (92, 232366), (184, 116183), (223, 95864), (446, 47932), (521, 41032), (892, 23966), (1042, 20516), (1784, 11983), (2084, 10258), (4168, 5129)]