20543536

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{283}}^1\times {\mathrm{349}}^1$

素因数の和:653

約数の個数: 40

約数和(自身を含む): 43139600

約数和(自身を除く): 22596064

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 283, 349, 566, 698, 1132, 1396, 2264, 2792, 3679, 4528, 4537, 5584, 7358, 9074, 14716, 18148, 29432, 36296, 58864, 72592, 98767, 197534, 395068, 790136, 1283971, 1580272, 2567942, 5135884, 10271768, 20543536]

約数ペア:

[(1, 20543536), (2, 10271768), (4, 5135884), (8, 2567942), (13, 1580272), (16, 1283971), (26, 790136), (52, 395068), (104, 197534), (208, 98767), (283, 72592), (349, 58864), (566, 36296), (698, 29432), (1132, 18148), (1396, 14716), (2264, 9074), (2792, 7358), (3679, 5584), (4528, 4537)]