20721436

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{13249}}^1$

素因数の和:13293

約数の個数: 24

約数和(自身を含む): 40068000

約数和(自身を除く): 19346564

約数列:

[1, 2, 4, 17, 23, 34, 46, 68, 92, 391, 782, 1564, 13249, 26498, 52996, 225233, 304727, 450466, 609454, 900932, 1218908, 5180359, 10360718, 20721436]

約数ペア:

[(1, 20721436), (2, 10360718), (4, 5180359), (17, 1218908), (23, 900932), (34, 609454), (46, 450466), (68, 304727), (92, 225233), (391, 52996), (782, 26498), (1564, 13249)]