213214420

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{150151}}^1$

素因数の和:150231

約数の個数: 24

約数和(自身を含む): 454059648

約数和(自身を除く): 240845228

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 150151, 300302, 600604, 750755, 1501510, 3003020, 10660721, 21321442, 42642884, 53303605, 106607210, 213214420]

約数ペア:

[(1, 213214420), (2, 106607210), (4, 53303605), (5, 42642884), (10, 21321442), (20, 10660721), (71, 3003020), (142, 1501510), (284, 750755), (355, 600604), (710, 300302), (1420, 150151)]