17881893

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{523}}^1$

素因数の和:689

約数の個数: 24

約数和(自身を含む): 26975520

約数和(自身を除く): 9093627

約数列:

[1, 3, 9, 29, 87, 131, 261, 393, 523, 1179, 1569, 3799, 4707, 11397, 15167, 34191, 45501, 68513, 136503, 205539, 616617, 1986877, 5960631, 17881893]

約数ペア:

[(1, 17881893), (3, 5960631), (9, 1986877), (29, 616617), (87, 205539), (131, 136503), (261, 68513), (393, 45501), (523, 34191), (1179, 15167), (1569, 11397), (3799, 4707)]