21397592

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{619}}^1$

素因数の和:803

約数の個数: 32

約数和(自身を含む): 41850000

約数和(自身を除く): 20452408

約数列:

[1, 2, 4, 8, 29, 58, 116, 149, 232, 298, 596, 619, 1192, 1238, 2476, 4321, 4952, 8642, 17284, 17951, 34568, 35902, 71804, 92231, 143608, 184462, 368924, 737848, 2674699, 5349398, 10698796, 21397592]

約数ペア:

[(1, 21397592), (2, 10698796), (4, 5349398), (8, 2674699), (29, 737848), (58, 368924), (116, 184462), (149, 143608), (232, 92231), (298, 71804), (596, 35902), (619, 34568), (1192, 17951), (1238, 17284), (2476, 8642), (4321, 4952)]