21892510

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{70621}}^1$

素因数の和:70659

約数の個数: 16

約数和(自身を含む): 40678272

約数和(自身を除く): 18785762

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 70621, 141242, 353105, 706210, 2189251, 4378502, 10946255, 21892510]

約数ペア:

[(1, 21892510), (2, 10946255), (5, 4378502), (10, 2189251), (31, 706210), (62, 353105), (155, 141242), (310, 70621)]