21029445

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:282

約数の個数: 48

約数和(自身を含む): 38068992

約数和(自身を除く): 17039547

約数列:

[1, 3, 5, 9, 15, 45, 47, 61, 141, 163, 183, 235, 305, 423, 489, 549, 705, 815, 915, 1467, 2115, 2445, 2745, 2867, 7335, 7661, 8601, 9943, 14335, 22983, 25803, 29829, 38305, 43005, 49715, 68949, 89487, 114915, 129015, 149145, 344745, 447435, 467321, 1401963, 2336605, 4205889, 7009815, 21029445]

約数ペア:

[(1, 21029445), (3, 7009815), (5, 4205889), (9, 2336605), (15, 1401963), (45, 467321), (47, 447435), (61, 344745), (141, 149145), (163, 129015), (183, 114915), (235, 89487), (305, 68949), (423, 49715), (489, 43005), (549, 38305), (705, 29829), (815, 25803), (915, 22983), (1467, 14335), (2115, 9943), (2445, 8601), (2745, 7661), (2867, 7335)]