21220835

素因数分解:

$5^1\times {\mathrm{23}}^2\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:235

約数の個数: 24

約数和(自身を含む): 27234144

約数和(自身を除く): 6013309

約数列:

[1, 5, 23, 71, 113, 115, 355, 529, 565, 1633, 2599, 2645, 8023, 8165, 12995, 37559, 40115, 59777, 184529, 187795, 298885, 922645, 4244167, 21220835]

約数ペア:

[(1, 21220835), (5, 4244167), (23, 922645), (71, 298885), (113, 187795), (115, 184529), (355, 59777), (529, 40115), (565, 37559), (1633, 12995), (2599, 8165), (2645, 8023)]