20918632

素因数分解:

$2^3\times 7^1\times {\mathrm{97}}^1\times {\mathrm{3851}}^1$

素因数の和:3961

約数の個数: 32

約数和(自身を含む): 45299520

約数和(自身を除く): 24380888

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 97, 194, 388, 679, 776, 1358, 2716, 3851, 5432, 7702, 15404, 26957, 30808, 53914, 107828, 215656, 373547, 747094, 1494188, 2614829, 2988376, 5229658, 10459316, 20918632]

約数ペア:

[(1, 20918632), (2, 10459316), (4, 5229658), (7, 2988376), (8, 2614829), (14, 1494188), (28, 747094), (56, 373547), (97, 215656), (194, 107828), (388, 53914), (679, 30808), (776, 26957), (1358, 15404), (2716, 7702), (3851, 5432)]