16980915

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3761}}^1$

素因数の和:3819

約数の個数: 32

約数和(自身を含む): 31781376

約数和(自身を除く): 14800461

約数列:

[1, 3, 5, 7, 15, 21, 35, 43, 105, 129, 215, 301, 645, 903, 1505, 3761, 4515, 11283, 18805, 26327, 56415, 78981, 131635, 161723, 394905, 485169, 808615, 1132061, 2425845, 3396183, 5660305, 16980915]

約数ペア:

[(1, 16980915), (3, 5660305), (5, 3396183), (7, 2425845), (15, 1132061), (21, 808615), (35, 485169), (43, 394905), (105, 161723), (129, 131635), (215, 78981), (301, 56415), (645, 26327), (903, 18805), (1505, 11283), (3761, 4515)]