21098457

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{229}}^1\times {\mathrm{353}}^1$

素因数の和:617

約数の個数: 24

約数和(自身を含む): 31753800

約数和(自身を除く): 10655343

約数列:

[1, 3, 9, 29, 87, 229, 261, 353, 687, 1059, 2061, 3177, 6641, 10237, 19923, 30711, 59769, 80837, 92133, 242511, 727533, 2344273, 7032819, 21098457]

約数ペア:

[(1, 21098457), (3, 7032819), (9, 2344273), (29, 727533), (87, 242511), (229, 92133), (261, 80837), (353, 59769), (687, 30711), (1059, 19923), (2061, 10237), (3177, 6641)]