210909890

素因数分解:

$2^1\times 5^1\times {\mathrm{331}}^1\times {\mathrm{63719}}^1$

素因数の和:64057

約数の個数: 16

約数和(自身を含む): 380790720

約数和(自身を除く): 169880830

約数列:

[1, 2, 5, 10, 331, 662, 1655, 3310, 63719, 127438, 318595, 637190, 21090989, 42181978, 105454945, 210909890]

約数ペア:

[(1, 210909890), (2, 105454945), (5, 42181978), (10, 21090989), (331, 637190), (662, 318595), (1655, 127438), (3310, 63719)]