21004724

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23761}}^1$

素因数の和:23795

約数の個数: 24

約数和(自身を含む): 41916168

約数和(自身を除く): 20911444

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 221, 442, 884, 23761, 47522, 95044, 308893, 403937, 617786, 807874, 1235572, 1615748, 5251181, 10502362, 21004724]

約数ペア:

[(1, 21004724), (2, 10502362), (4, 5251181), (13, 1615748), (17, 1235572), (26, 807874), (34, 617786), (52, 403937), (68, 308893), (221, 95044), (442, 47522), (884, 23761)]