21229972

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{397}}^1\times {\mathrm{461}}^1$

素因数の和:891

約数の個数: 24

約数和(自身を含む): 38613960

約数和(自身を除く): 17383988

約数列:

[1, 2, 4, 29, 58, 116, 397, 461, 794, 922, 1588, 1844, 11513, 13369, 23026, 26738, 46052, 53476, 183017, 366034, 732068, 5307493, 10614986, 21229972]

約数ペア:

[(1, 21229972), (2, 10614986), (4, 5307493), (29, 732068), (58, 366034), (116, 183017), (397, 53476), (461, 46052), (794, 26738), (922, 23026), (1588, 13369), (1844, 11513)]