21198730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{9769}}^1$

素因数の和:9814

約数の個数: 32

約数和(自身を含む): 45020160

約数和(自身を除く): 23821430

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 310, 434, 1085, 2170, 9769, 19538, 48845, 68383, 97690, 136766, 302839, 341915, 605678, 683830, 1514195, 2119873, 3028390, 4239746, 10599365, 21198730]

約数ペア:

[(1, 21198730), (2, 10599365), (5, 4239746), (7, 3028390), (10, 2119873), (14, 1514195), (31, 683830), (35, 605678), (62, 341915), (70, 302839), (155, 136766), (217, 97690), (310, 68383), (434, 48845), (1085, 19538), (2170, 9769)]