21538796

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{4339}}^1$

素因数の和:4433

約数の個数: 24

約数和(自身を含む): 40466160

約数和(自身を除く): 18927364

約数列:

[1, 2, 4, 17, 34, 68, 73, 146, 292, 1241, 2482, 4339, 4964, 8678, 17356, 73763, 147526, 295052, 316747, 633494, 1266988, 5384699, 10769398, 21538796]

約数ペア:

[(1, 21538796), (2, 10769398), (4, 5384699), (17, 1266988), (34, 633494), (68, 316747), (73, 295052), (146, 147526), (292, 73763), (1241, 17356), (2482, 8678), (4339, 4964)]