21027585

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{829}}^1$

素因数の和:945

約数の個数: 32

約数和(自身を含む): 35856000

約数和(自身を除く): 14828415

約数列:

[1, 3, 5, 15, 19, 57, 89, 95, 267, 285, 445, 829, 1335, 1691, 2487, 4145, 5073, 8455, 12435, 15751, 25365, 47253, 73781, 78755, 221343, 236265, 368905, 1106715, 1401839, 4205517, 7009195, 21027585]

約数ペア:

[(1, 21027585), (3, 7009195), (5, 4205517), (15, 1401839), (19, 1106715), (57, 368905), (89, 236265), (95, 221343), (267, 78755), (285, 73781), (445, 47253), (829, 25365), (1335, 15751), (1691, 12435), (2487, 8455), (4145, 5073)]