21016854

素因数分解:

$2^1\times 3^3\times {\mathrm{131}}^1\times {\mathrm{2971}}^1$

素因数の和:3113

約数の個数: 32

約数和(自身を含む): 47076480

約数和(自身を除く): 26059626

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 131, 262, 393, 786, 1179, 2358, 2971, 3537, 5942, 7074, 8913, 17826, 26739, 53478, 80217, 160434, 389201, 778402, 1167603, 2335206, 3502809, 7005618, 10508427, 21016854]

約数ペア:

[(1, 21016854), (2, 10508427), (3, 7005618), (6, 3502809), (9, 2335206), (18, 1167603), (27, 778402), (54, 389201), (131, 160434), (262, 80217), (393, 53478), (786, 26739), (1179, 17826), (2358, 8913), (2971, 7074), (3537, 5942)]