21496615

素因数分解:

$5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:271

約数の個数: 32

約数和(自身を含む): 30551040

約数和(自身を除く): 9054425

約数列:

[1, 5, 7, 35, 67, 89, 103, 335, 445, 469, 515, 623, 721, 2345, 3115, 3605, 5963, 6901, 9167, 29815, 34505, 41741, 45835, 48307, 64169, 208705, 241535, 320845, 614189, 3070945, 4299323, 21496615]

約数ペア:

[(1, 21496615), (5, 4299323), (7, 3070945), (35, 614189), (67, 320845), (89, 241535), (103, 208705), (335, 64169), (445, 48307), (469, 45835), (515, 41741), (623, 34505), (721, 29815), (2345, 9167), (3115, 6901), (3605, 5963)]