21422860

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{317}}^1$

素因数の和:466

約数の個数: 48

約数和(自身を含む): 47013120

約数和(自身を除く): 25590260

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 109, 124, 155, 218, 310, 317, 436, 545, 620, 634, 1090, 1268, 1585, 2180, 3170, 3379, 6340, 6758, 9827, 13516, 16895, 19654, 33790, 34553, 39308, 49135, 67580, 69106, 98270, 138212, 172765, 196540, 345530, 691060, 1071143, 2142286, 4284572, 5355715, 10711430, 21422860]

約数ペア:

[(1, 21422860), (2, 10711430), (4, 5355715), (5, 4284572), (10, 2142286), (20, 1071143), (31, 691060), (62, 345530), (109, 196540), (124, 172765), (155, 138212), (218, 98270), (310, 69106), (317, 67580), (436, 49135), (545, 39308), (620, 34553), (634, 33790), (1090, 19654), (1268, 16895), (1585, 13516), (2180, 9827), (3170, 6758), (3379, 6340)]