21069368

素因数分解:

$2^3\times {\mathrm{379}}^1\times {\mathrm{6949}}^1$

素因数の和:7334

約数の個数: 16

約数和(自身を含む): 39615000

約数和(自身を除く): 18545632

約数列:

[1, 2, 4, 8, 379, 758, 1516, 3032, 6949, 13898, 27796, 55592, 2633671, 5267342, 10534684, 21069368]

約数ペア:

[(1, 21069368), (2, 10534684), (4, 5267342), (8, 2633671), (379, 55592), (758, 27796), (1516, 13898), (3032, 6949)]