20987776

素因数分解:

$2^7\times {\mathrm{23}}^1\times {\mathrm{7129}}^1$

素因数の和:7166

約数の個数: 32

約数和(自身を含む): 43635600

約数和(自身を除く): 22647824

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 92, 128, 184, 368, 736, 1472, 2944, 7129, 14258, 28516, 57032, 114064, 163967, 228128, 327934, 456256, 655868, 912512, 1311736, 2623472, 5246944, 10493888, 20987776]

約数ペア:

[(1, 20987776), (2, 10493888), (4, 5246944), (8, 2623472), (16, 1311736), (23, 912512), (32, 655868), (46, 456256), (64, 327934), (92, 228128), (128, 163967), (184, 114064), (368, 57032), (736, 28516), (1472, 14258), (2944, 7129)]