19401872

素因数分解:

$2^4\times 7^1\times {\mathrm{211}}^1\times {\mathrm{821}}^1$

素因数の和:1047

約数の個数: 40

約数和(自身を含む): 43217472

約数和(自身を除く): 23815600

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 211, 422, 821, 844, 1477, 1642, 1688, 2954, 3284, 3376, 5747, 5908, 6568, 11494, 11816, 13136, 22988, 23632, 45976, 91952, 173231, 346462, 692924, 1212617, 1385848, 2425234, 2771696, 4850468, 9700936, 19401872]

約数ペア:

[(1, 19401872), (2, 9700936), (4, 4850468), (7, 2771696), (8, 2425234), (14, 1385848), (16, 1212617), (28, 692924), (56, 346462), (112, 173231), (211, 91952), (422, 45976), (821, 23632), (844, 22988), (1477, 13136), (1642, 11816), (1688, 11494), (2954, 6568), (3284, 5908), (3376, 5747)]