18139856

素因数分解:

$2^4\times 7^1\times {\mathrm{149}}^1\times {\mathrm{1087}}^1$

素因数の和:1251

約数の個数: 40

約数和(自身を含む): 40473600

約数和(自身を除く): 22333744

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 149, 298, 596, 1043, 1087, 1192, 2086, 2174, 2384, 4172, 4348, 7609, 8344, 8696, 15218, 16688, 17392, 30436, 60872, 121744, 161963, 323926, 647852, 1133741, 1295704, 2267482, 2591408, 4534964, 9069928, 18139856]

約数ペア:

[(1, 18139856), (2, 9069928), (4, 4534964), (7, 2591408), (8, 2267482), (14, 1295704), (16, 1133741), (28, 647852), (56, 323926), (112, 161963), (149, 121744), (298, 60872), (596, 30436), (1043, 17392), (1087, 16688), (1192, 15218), (2086, 8696), (2174, 8344), (2384, 7609), (4172, 4348)]