21052570

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1439}}^1$

素因数の和:1483

約数の個数: 64

約数和(自身を含む): 49766400

約数和(自身を除く): 28713830

約数列:

[1, 2, 5, 7, 10, 11, 14, 19, 22, 35, 38, 55, 70, 77, 95, 110, 133, 154, 190, 209, 266, 385, 418, 665, 770, 1045, 1330, 1439, 1463, 2090, 2878, 2926, 7195, 7315, 10073, 14390, 14630, 15829, 20146, 27341, 31658, 50365, 54682, 79145, 100730, 110803, 136705, 158290, 191387, 221606, 273410, 300751, 382774, 554015, 601502, 956935, 1108030, 1503755, 1913870, 2105257, 3007510, 4210514, 10526285, 21052570]

約数ペア:

[(1, 21052570), (2, 10526285), (5, 4210514), (7, 3007510), (10, 2105257), (11, 1913870), (14, 1503755), (19, 1108030), (22, 956935), (35, 601502), (38, 554015), (55, 382774), (70, 300751), (77, 273410), (95, 221606), (110, 191387), (133, 158290), (154, 136705), (190, 110803), (209, 100730), (266, 79145), (385, 54682), (418, 50365), (665, 31658), (770, 27341), (1045, 20146), (1330, 15829), (1439, 14630), (1463, 14390), (2090, 10073), (2878, 7315), (2926, 7195)]