21540876

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{2539}}^1$

素因数の和:2654

約数の個数: 48

約数和(自身を含む): 58033920

約数和(自身を除く): 36493044

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 101, 202, 303, 404, 606, 707, 1212, 1414, 2121, 2539, 2828, 4242, 5078, 7617, 8484, 10156, 15234, 17773, 30468, 35546, 53319, 71092, 106638, 213276, 256439, 512878, 769317, 1025756, 1538634, 1795073, 3077268, 3590146, 5385219, 7180292, 10770438, 21540876]

約数ペア:

[(1, 21540876), (2, 10770438), (3, 7180292), (4, 5385219), (6, 3590146), (7, 3077268), (12, 1795073), (14, 1538634), (21, 1025756), (28, 769317), (42, 512878), (84, 256439), (101, 213276), (202, 106638), (303, 71092), (404, 53319), (606, 35546), (707, 30468), (1212, 17773), (1414, 15234), (2121, 10156), (2539, 8484), (2828, 7617), (4242, 5078)]