21712424

素因数分解:

$2^3\times {\mathrm{389}}^1\times {\mathrm{6977}}^1$

素因数の和:7372

約数の個数: 16

約数和(自身を含む): 40821300

約数和(自身を除く): 19108876

約数列:

[1, 2, 4, 8, 389, 778, 1556, 3112, 6977, 13954, 27908, 55816, 2714053, 5428106, 10856212, 21712424]

約数ペア:

[(1, 21712424), (2, 10856212), (4, 5428106), (8, 2714053), (389, 55816), (778, 27908), (1556, 13954), (3112, 6977)]