28756988

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{7789}}^1$

素因数の和:7877

約数の個数: 24

約数和(自身を含む): 54966240

約数和(自身を除く): 26209252

約数列:

[1, 2, 4, 13, 26, 52, 71, 142, 284, 923, 1846, 3692, 7789, 15578, 31156, 101257, 202514, 405028, 553019, 1106038, 2212076, 7189247, 14378494, 28756988]

約数ペア:

[(1, 28756988), (2, 14378494), (4, 7189247), (13, 2212076), (26, 1106038), (52, 553019), (71, 405028), (142, 202514), (284, 101257), (923, 31156), (1846, 15578), (3692, 7789)]