64621641

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1361}}^1$

素因数の和:1414

約数の個数: 48

約数和(自身を含む): 111792960

約数和(自身を除く): 47171319

約数列:

[1, 3, 7, 17, 19, 21, 49, 51, 57, 119, 133, 147, 323, 357, 399, 833, 931, 969, 1361, 2261, 2499, 2793, 4083, 6783, 9527, 15827, 23137, 25859, 28581, 47481, 66689, 69411, 77577, 161959, 181013, 200067, 439603, 485877, 543039, 1133713, 1267091, 1318809, 3077221, 3401139, 3801273, 9231663, 21540547, 64621641]

約数ペア:

[(1, 64621641), (3, 21540547), (7, 9231663), (17, 3801273), (19, 3401139), (21, 3077221), (49, 1318809), (51, 1267091), (57, 1133713), (119, 543039), (133, 485877), (147, 439603), (323, 200067), (357, 181013), (399, 161959), (833, 77577), (931, 69411), (969, 66689), (1361, 47481), (2261, 28581), (2499, 25859), (2793, 23137), (4083, 15827), (6783, 9527)]