21490884877

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{577}}^1\times {\mathrm{21031}}^1$

素因数の和:21649

約数の個数: 32

約数和(自身を含む): 28008566784

約数和(自身を除く): 6517681907

約数列:

[1, 7, 11, 23, 77, 161, 253, 577, 1771, 4039, 6347, 13271, 21031, 44429, 92897, 145981, 147217, 231341, 483713, 1021867, 1619387, 3385991, 5320843, 12134887, 37245901, 84944209, 133483757, 279102401, 934386299, 1953716807, 3070126411, 21490884877]

約数ペア:

[(1, 21490884877), (7, 3070126411), (11, 1953716807), (23, 934386299), (77, 279102401), (161, 133483757), (253, 84944209), (577, 37245901), (1771, 12134887), (4039, 5320843), (6347, 3385991), (13271, 1619387), (21031, 1021867), (44429, 483713), (92897, 231341), (145981, 147217)]