19906172

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{2677}}^1$

素因数の和:2718

約数の個数: 36

約数和(自身を含む): 41166216

約数和(自身を除く): 21260044

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 169, 286, 338, 572, 676, 1859, 2677, 3718, 5354, 7436, 10708, 29447, 34801, 58894, 69602, 117788, 139204, 382811, 452413, 765622, 904826, 1531244, 1809652, 4976543, 9953086, 19906172]

約数ペア:

[(1, 19906172), (2, 9953086), (4, 4976543), (11, 1809652), (13, 1531244), (22, 904826), (26, 765622), (44, 452413), (52, 382811), (143, 139204), (169, 117788), (286, 69602), (338, 58894), (572, 34801), (676, 29447), (1859, 10708), (2677, 7436), (3718, 5354)]