21786622

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4481}}^1$

素因数の和:4524

約数の個数: 32

約数和(自身を含む): 40660704

約数和(自身を除く): 18874082

約数列:

[1, 2, 11, 13, 17, 22, 26, 34, 143, 187, 221, 286, 374, 442, 2431, 4481, 4862, 8962, 49291, 58253, 76177, 98582, 116506, 152354, 640783, 837947, 990301, 1281566, 1675894, 1980602, 10893311, 21786622]

約数ペア:

[(1, 21786622), (2, 10893311), (11, 1980602), (13, 1675894), (17, 1281566), (22, 990301), (26, 837947), (34, 640783), (143, 152354), (187, 116506), (221, 98582), (286, 76177), (374, 58253), (442, 49291), (2431, 8962), (4481, 4862)]