21359080

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{18413}}^1$

素因数の和:18453

約数の個数: 32

約数和(自身を含む): 49717800

約数和(自身を除く): 28358720

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 18413, 36826, 73652, 92065, 147304, 184130, 368260, 533977, 736520, 1067954, 2135908, 2669885, 4271816, 5339770, 10679540, 21359080]

約数ペア:

[(1, 21359080), (2, 10679540), (4, 5339770), (5, 4271816), (8, 2669885), (10, 2135908), (20, 1067954), (29, 736520), (40, 533977), (58, 368260), (116, 184130), (145, 147304), (232, 92065), (290, 73652), (580, 36826), (1160, 18413)]