21346115

素因数分解:

$5^1\times 7^2\times {\mathrm{151}}^1\times {\mathrm{577}}^1$

素因数の和:747

約数の個数: 24

約数和(自身を含む): 30046752

約数和(自身を除く): 8700637

約数列:

[1, 5, 7, 35, 49, 151, 245, 577, 755, 1057, 2885, 4039, 5285, 7399, 20195, 28273, 36995, 87127, 141365, 435635, 609889, 3049445, 4269223, 21346115]

約数ペア:

[(1, 21346115), (5, 4269223), (7, 3049445), (35, 609889), (49, 435635), (151, 141365), (245, 87127), (577, 36995), (755, 28273), (1057, 20195), (2885, 7399), (4039, 5285)]