21489754

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2591}}^1$

素因数の和:2646

約数の個数: 32

約数和(自身を含む): 39191040

約数和(自身を除く): 17701286

約数列:

[1, 2, 11, 13, 22, 26, 29, 58, 143, 286, 319, 377, 638, 754, 2591, 4147, 5182, 8294, 28501, 33683, 57002, 67366, 75139, 150278, 370513, 741026, 826529, 976807, 1653058, 1953614, 10744877, 21489754]

約数ペア:

[(1, 21489754), (2, 10744877), (11, 1953614), (13, 1653058), (22, 976807), (26, 826529), (29, 741026), (58, 370513), (143, 150278), (286, 75139), (319, 67366), (377, 57002), (638, 33683), (754, 28501), (2591, 8294), (4147, 5182)]