21267428

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{58427}}^1$

素因数の和:58451

約数の個数: 24

約数和(自身を含む): 45807552

約数和(自身を除く): 24540124

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 58427, 116854, 233708, 408989, 759551, 817978, 1519102, 1635956, 3038204, 5316857, 10633714, 21267428]

約数ペア:

[(1, 21267428), (2, 10633714), (4, 5316857), (7, 3038204), (13, 1635956), (14, 1519102), (26, 817978), (28, 759551), (52, 408989), (91, 233708), (182, 116854), (364, 58427)]