21809452

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{113}}^2$

素因数の和:298

約数の個数: 36

約数和(自身を含む): 44729776

約数和(自身を除く): 22920324

約数列:

[1, 2, 4, 7, 14, 28, 61, 113, 122, 226, 244, 427, 452, 791, 854, 1582, 1708, 3164, 6893, 12769, 13786, 25538, 27572, 48251, 51076, 89383, 96502, 178766, 193004, 357532, 778909, 1557818, 3115636, 5452363, 10904726, 21809452]

約数ペア:

[(1, 21809452), (2, 10904726), (4, 5452363), (7, 3115636), (14, 1557818), (28, 778909), (61, 357532), (113, 193004), (122, 178766), (226, 96502), (244, 89383), (427, 51076), (452, 48251), (791, 27572), (854, 25538), (1582, 13786), (1708, 12769), (3164, 6893)]