21359786

素因数分解:

$2^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{12821}}^1$

素因数の和:12854

約数の個数: 24

約数和(自身を含む): 39466116

約数和(自身を除く): 18106330

約数列:

[1, 2, 7, 14, 17, 34, 49, 98, 119, 238, 833, 1666, 12821, 25642, 89747, 179494, 217957, 435914, 628229, 1256458, 1525699, 3051398, 10679893, 21359786]

約数ペア:

[(1, 21359786), (2, 10679893), (7, 3051398), (14, 1525699), (17, 1256458), (34, 628229), (49, 435914), (98, 217957), (119, 179494), (238, 89747), (833, 25642), (1666, 12821)]