216906305

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{383}}^1\times {\mathrm{1471}}^1$

素因数の和:1877

約数の個数: 32

約数和(自身を含む): 325582848

約数和(自身を除く): 108676543

約数列:

[1, 5, 7, 11, 35, 55, 77, 383, 385, 1471, 1915, 2681, 4213, 7355, 10297, 13405, 16181, 21065, 29491, 51485, 80905, 113267, 147455, 563393, 566335, 2816965, 3943751, 6197323, 19718755, 30986615, 43381261, 216906305]

約数ペア:

[(1, 216906305), (5, 43381261), (7, 30986615), (11, 19718755), (35, 6197323), (55, 3943751), (77, 2816965), (383, 566335), (385, 563393), (1471, 147455), (1915, 113267), (2681, 80905), (4213, 51485), (7355, 29491), (10297, 21065), (13405, 16181)]