21081036

素因数分解:

$2^2\times 3^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{227}}^1$

素因数の和:414

約数の個数: 48

約数和(自身を含む): 50561280

約数和(自身を除く): 29480244

約数列:

[1, 2, 3, 4, 6, 12, 71, 109, 142, 213, 218, 227, 284, 327, 426, 436, 454, 654, 681, 852, 908, 1308, 1362, 2724, 7739, 15478, 16117, 23217, 24743, 30956, 32234, 46434, 48351, 49486, 64468, 74229, 92868, 96702, 98972, 148458, 193404, 296916, 1756753, 3513506, 5270259, 7027012, 10540518, 21081036]

約数ペア:

[(1, 21081036), (2, 10540518), (3, 7027012), (4, 5270259), (6, 3513506), (12, 1756753), (71, 296916), (109, 193404), (142, 148458), (213, 98972), (218, 96702), (227, 92868), (284, 74229), (327, 64468), (426, 49486), (436, 48351), (454, 46434), (654, 32234), (681, 30956), (852, 24743), (908, 23217), (1308, 16117), (1362, 15478), (2724, 7739)]