20199821271

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1279}}^1\times {\mathrm{12329}}^1$

素因数の和:13679

約数の個数: 32

約数和(自身を含む): 31312281600

約数和(自身を除く): 11112460329

約数列:

[1, 3, 7, 21, 61, 183, 427, 1279, 1281, 3837, 8953, 12329, 26859, 36987, 78019, 86303, 234057, 258909, 546133, 752069, 1638399, 2256207, 5264483, 15768791, 15793449, 47306373, 110381537, 331144611, 961896251, 2885688753, 6733273757, 20199821271]

約数ペア:

[(1, 20199821271), (3, 6733273757), (7, 2885688753), (21, 961896251), (61, 331144611), (183, 110381537), (427, 47306373), (1279, 15793449), (1281, 15768791), (3837, 5264483), (8953, 2256207), (12329, 1638399), (26859, 752069), (36987, 546133), (78019, 258909), (86303, 234057)]