21229675

素因数分解:

$5^2\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{389}}^1$

素因数の和:495

約数の個数: 24

約数和(自身を含む): 27565200

約数和(自身を除く): 6335525

約数列:

[1, 5, 25, 37, 59, 185, 295, 389, 925, 1475, 1945, 2183, 9725, 10915, 14393, 22951, 54575, 71965, 114755, 359825, 573775, 849187, 4245935, 21229675]

約数ペア:

[(1, 21229675), (5, 4245935), (25, 849187), (37, 573775), (59, 359825), (185, 114755), (295, 71965), (389, 54575), (925, 22951), (1475, 14393), (1945, 10915), (2183, 9725)]