2155437921

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1127911}}^1$

素因数の和:1127941

約数の個数: 24

約数和(自身を含む): 3600295104

約数和(自身を除く): 1444857183

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 1127911, 3383733, 7895377, 14662843, 23686131, 43988529, 55267639, 102639901, 165802917, 307919703, 718479307, 2155437921]

約数ペア:

[(1, 2155437921), (3, 718479307), (7, 307919703), (13, 165802917), (21, 102639901), (39, 55267639), (49, 43988529), (91, 23686131), (147, 14662843), (273, 7895377), (637, 3383733), (1911, 1127911)]