213819890

素因数分解:

$2^1\times 5^1\times {\mathrm{419}}^1\times {\mathrm{51031}}^1$

素因数の和:51457

約数の個数: 16

約数和(自身を含む): 385801920

約数和(自身を除く): 171982030

約数列:

[1, 2, 5, 10, 419, 838, 2095, 4190, 51031, 102062, 255155, 510310, 21381989, 42763978, 106909945, 213819890]

約数ペア:

[(1, 213819890), (2, 106909945), (5, 42763978), (10, 21381989), (419, 510310), (838, 255155), (2095, 102062), (4190, 51031)]