21808654

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2131}}^1$

素因数の和:2200

約数の個数: 32

約数和(自身を含む): 40525056

約数和(自身を除く): 18716402

約数列:

[1, 2, 7, 14, 17, 34, 43, 86, 119, 238, 301, 602, 731, 1462, 2131, 4262, 5117, 10234, 14917, 29834, 36227, 72454, 91633, 183266, 253589, 507178, 641431, 1282862, 1557761, 3115522, 10904327, 21808654]

約数ペア:

[(1, 21808654), (2, 10904327), (7, 3115522), (14, 1557761), (17, 1282862), (34, 641431), (43, 507178), (86, 253589), (119, 183266), (238, 91633), (301, 72454), (602, 36227), (731, 29834), (1462, 14917), (2131, 10234), (4262, 5117)]