21817590

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{10243}}^1$

素因数の和:10324

約数の個数: 32

約数和(自身を含む): 53104896

約数和(自身を除く): 31287306

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 71, 142, 213, 355, 426, 710, 1065, 2130, 10243, 20486, 30729, 51215, 61458, 102430, 153645, 307290, 727253, 1454506, 2181759, 3636265, 4363518, 7272530, 10908795, 21817590]

約数ペア:

[(1, 21817590), (2, 10908795), (3, 7272530), (5, 4363518), (6, 3636265), (10, 2181759), (15, 1454506), (30, 727253), (71, 307290), (142, 153645), (213, 102430), (355, 61458), (426, 51215), (710, 30729), (1065, 20486), (2130, 10243)]