21497736

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{68903}}^1$

素因数の和:68925

約数の個数: 32

約数和(自身を含む): 57879360

約数和(自身を除く): 36381624

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 68903, 137806, 206709, 275612, 413418, 551224, 826836, 895739, 1653672, 1791478, 2687217, 3582956, 5374434, 7165912, 10748868, 21497736]

約数ペア:

[(1, 21497736), (2, 10748868), (3, 7165912), (4, 5374434), (6, 3582956), (8, 2687217), (12, 1791478), (13, 1653672), (24, 895739), (26, 826836), (39, 551224), (52, 413418), (78, 275612), (104, 206709), (156, 137806), (312, 68903)]