21704180

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{1627}}^1$

素因数の和:1688

約数の個数: 48

約数和(自身を含む): 49230720

約数和(自身を除く): 27526540

約数列:

[1, 2, 4, 5, 10, 20, 23, 29, 46, 58, 92, 115, 116, 145, 230, 290, 460, 580, 667, 1334, 1627, 2668, 3254, 3335, 6508, 6670, 8135, 13340, 16270, 32540, 37421, 47183, 74842, 94366, 149684, 187105, 188732, 235915, 374210, 471830, 748420, 943660, 1085209, 2170418, 4340836, 5426045, 10852090, 21704180]

約数ペア:

[(1, 21704180), (2, 10852090), (4, 5426045), (5, 4340836), (10, 2170418), (20, 1085209), (23, 943660), (29, 748420), (46, 471830), (58, 374210), (92, 235915), (115, 188732), (116, 187105), (145, 149684), (230, 94366), (290, 74842), (460, 47183), (580, 37421), (667, 32540), (1334, 16270), (1627, 13340), (2668, 8135), (3254, 6670), (3335, 6508)]