21505238

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{15427}}^1$

素因数の和:15487

約数の個数: 16

約数和(自身を含む): 34990704

約数和(自身を除く): 13485466

約数列:

[1, 2, 17, 34, 41, 82, 697, 1394, 15427, 30854, 262259, 524518, 632507, 1265014, 10752619, 21505238]

約数ペア:

[(1, 21505238), (2, 10752619), (17, 1265014), (34, 632507), (41, 524518), (82, 262259), (697, 30854), (1394, 15427)]