21110030

素因数分解:

$2^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1\times {\mathrm{181}}^1$

素因数の和:404

約数の個数: 32

約数和(自身を含む): 38918880

約数和(自身を除く): 17808850

約数列:

[1, 2, 5, 10, 107, 109, 181, 214, 218, 362, 535, 545, 905, 1070, 1090, 1810, 11663, 19367, 19729, 23326, 38734, 39458, 58315, 96835, 98645, 116630, 193670, 197290, 2111003, 4222006, 10555015, 21110030]

約数ペア:

[(1, 21110030), (2, 10555015), (5, 4222006), (10, 2111003), (107, 197290), (109, 193670), (181, 116630), (214, 98645), (218, 96835), (362, 58315), (535, 39458), (545, 38734), (905, 23326), (1070, 19729), (1090, 19367), (1810, 11663)]