21321985535

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{7240063}}^1$

素因数の和:7240118

約数の個数: 16

約数和(自身を含む): 27801845760

約数和(自身を除く): 6479860225

約数列:

[1, 5, 19, 31, 95, 155, 589, 2945, 7240063, 36200315, 137561197, 224441953, 687805985, 1122209765, 4264397107, 21321985535]

約数ペア:

[(1, 21321985535), (5, 4264397107), (19, 1122209765), (31, 687805985), (95, 224441953), (155, 137561197), (589, 36200315), (2945, 7240063)]