20447128

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{467}}^1$

素因数の和:907

約数の個数: 32

約数和(自身を含む): 41474160

約数和(自身を除く): 21027032

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 421, 467, 842, 934, 1684, 1868, 3368, 3736, 5473, 6071, 10946, 12142, 21892, 24284, 43784, 48568, 196607, 393214, 786428, 1572856, 2555891, 5111782, 10223564, 20447128]

約数ペア:

[(1, 20447128), (2, 10223564), (4, 5111782), (8, 2555891), (13, 1572856), (26, 786428), (52, 393214), (104, 196607), (421, 48568), (467, 43784), (842, 24284), (934, 21892), (1684, 12142), (1868, 10946), (3368, 6071), (3736, 5473)]