21139090

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{6163}}^1$

素因数の和:6191

約数の個数: 32

約数和(自身を含む): 44380800

約数和(自身を除く): 23241710

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 343, 490, 686, 1715, 3430, 6163, 12326, 30815, 43141, 61630, 86282, 215705, 301987, 431410, 603974, 1509935, 2113909, 3019870, 4227818, 10569545, 21139090]

約数ペア:

[(1, 21139090), (2, 10569545), (5, 4227818), (7, 3019870), (10, 2113909), (14, 1509935), (35, 603974), (49, 431410), (70, 301987), (98, 215705), (245, 86282), (343, 61630), (490, 43141), (686, 30815), (1715, 12326), (3430, 6163)]