251286477

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{457}}^1\times {\mathrm{613}}^1$

素因数の和:1109

約数の個数: 32

約数和(自身を含む): 377948928

約数和(自身を除く): 126662451

約数列:

[1, 3, 13, 23, 39, 69, 299, 457, 613, 897, 1371, 1839, 5941, 7969, 10511, 14099, 17823, 23907, 31533, 42297, 136643, 183287, 280141, 409929, 549861, 840423, 3641833, 6443243, 10925499, 19329729, 83762159, 251286477]

約数ペア:

[(1, 251286477), (3, 83762159), (13, 19329729), (23, 10925499), (39, 6443243), (69, 3641833), (299, 840423), (457, 549861), (613, 409929), (897, 280141), (1371, 183287), (1839, 136643), (5941, 42297), (7969, 31533), (10511, 23907), (14099, 17823)]