21852590

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53299}}^1$

素因数の和:53347

約数の個数: 16

約数和(自身を含む): 40294800

約数和(自身を除く): 18442210

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 53299, 106598, 266495, 532990, 2185259, 4370518, 10926295, 21852590]

約数ペア:

[(1, 21852590), (2, 10926295), (5, 4370518), (10, 2185259), (41, 532990), (82, 266495), (205, 106598), (410, 53299)]