641862

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^2\times {\mathrm{211}}^1$

素因数の和:245

約数の個数: 36

約数和(自身を含む): 1513044

約数和(自身を除く): 871182

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 169, 211, 234, 338, 422, 507, 633, 1014, 1266, 1521, 1899, 2743, 3042, 3798, 5486, 8229, 16458, 24687, 35659, 49374, 71318, 106977, 213954, 320931, 641862]

約数ペア:

[(1, 641862), (2, 320931), (3, 213954), (6, 106977), (9, 71318), (13, 49374), (18, 35659), (26, 24687), (39, 16458), (78, 8229), (117, 5486), (169, 3798), (211, 3042), (234, 2743), (338, 1899), (422, 1521), (507, 1266), (633, 1014)]