18236816

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2039}}^1$

素因数の和:2103

約数の個数: 40

約数和(自身を含む): 38955840

約数和(自身を除く): 20719024

約数列:

[1, 2, 4, 8, 13, 16, 26, 43, 52, 86, 104, 172, 208, 344, 559, 688, 1118, 2039, 2236, 4078, 4472, 8156, 8944, 16312, 26507, 32624, 53014, 87677, 106028, 175354, 212056, 350708, 424112, 701416, 1139801, 1402832, 2279602, 4559204, 9118408, 18236816]

約数ペア:

[(1, 18236816), (2, 9118408), (4, 4559204), (8, 2279602), (13, 1402832), (16, 1139801), (26, 701416), (43, 424112), (52, 350708), (86, 212056), (104, 175354), (172, 106028), (208, 87677), (344, 53014), (559, 32624), (688, 26507), (1118, 16312), (2039, 8944), (2236, 8156), (4078, 4472)]