21260356

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{8699}}^1$

素因数の和:8763

約数の個数: 24

約数和(自身を含む): 40924800

約数和(自身を除く): 19664444

約数列:

[1, 2, 4, 13, 26, 47, 52, 94, 188, 611, 1222, 2444, 8699, 17398, 34796, 113087, 226174, 408853, 452348, 817706, 1635412, 5315089, 10630178, 21260356]

約数ペア:

[(1, 21260356), (2, 10630178), (4, 5315089), (13, 1635412), (26, 817706), (47, 452348), (52, 408853), (94, 226174), (188, 113087), (611, 34796), (1222, 17398), (2444, 8699)]