21161144

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{421}}^1$

素因数の和:591

約数の個数: 32

約数和(自身を含む): 40815840

約数和(自身を除く): 19654696

約数列:

[1, 2, 4, 8, 61, 103, 122, 206, 244, 412, 421, 488, 824, 842, 1684, 3368, 6283, 12566, 25132, 25681, 43363, 50264, 51362, 86726, 102724, 173452, 205448, 346904, 2645143, 5290286, 10580572, 21161144]

約数ペア:

[(1, 21161144), (2, 10580572), (4, 5290286), (8, 2645143), (61, 346904), (103, 205448), (122, 173452), (206, 102724), (244, 86726), (412, 51362), (421, 50264), (488, 43363), (824, 25681), (842, 25132), (1684, 12566), (3368, 6283)]