20981451327

素因数分解:

$3^1\times {\mathrm{139}}^1\times {\mathrm{227}}^1\times {\mathrm{221653}}^1$

素因数の和:222022

約数の個数: 16

約数和(自身を含む): 28300782720

約数和(自身を除く): 7319331393

約数列:

[1, 3, 139, 227, 417, 681, 31553, 94659, 221653, 664959, 30809767, 50315231, 92429301, 150945693, 6993817109, 20981451327]

約数ペア:

[(1, 20981451327), (3, 6993817109), (139, 150945693), (227, 92429301), (417, 50315231), (681, 30809767), (31553, 664959), (94659, 221653)]