20447908

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{2273}}^1$

素因数の和:2463

約数の個数: 24

約数和(自身を含む): 38776248

約数和(自身を除く): 18328340

約数列:

[1, 2, 4, 13, 26, 52, 173, 346, 692, 2249, 2273, 4498, 4546, 8996, 9092, 29549, 59098, 118196, 393229, 786458, 1572916, 5111977, 10223954, 20447908]

約数ペア:

[(1, 20447908), (2, 10223954), (4, 5111977), (13, 1572916), (26, 786458), (52, 393229), (173, 118196), (346, 59098), (692, 29549), (2249, 9092), (2273, 8996), (4498, 4546)]