21098786

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{4793}}^1$

素因数の和:4897

約数の個数: 16

約数和(自身を含む): 33136128

約数和(自身を除く): 12037342

約数列:

[1, 2, 31, 62, 71, 142, 2201, 4402, 4793, 9586, 148583, 297166, 340303, 680606, 10549393, 21098786]

約数ペア:

[(1, 21098786), (2, 10549393), (31, 680606), (62, 340303), (71, 297166), (142, 148583), (2201, 9586), (4402, 4793)]