21463910

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{4027}}^1$

素因数の和:4088

約数の個数: 32

約数和(自身を含む): 42632352

約数和(自身を除く): 21168442

約数列:

[1, 2, 5, 10, 13, 26, 41, 65, 82, 130, 205, 410, 533, 1066, 2665, 4027, 5330, 8054, 20135, 40270, 52351, 104702, 165107, 261755, 330214, 523510, 825535, 1651070, 2146391, 4292782, 10731955, 21463910]

約数ペア:

[(1, 21463910), (2, 10731955), (5, 4292782), (10, 2146391), (13, 1651070), (26, 825535), (41, 523510), (65, 330214), (82, 261755), (130, 165107), (205, 104702), (410, 52351), (533, 40270), (1066, 20135), (2665, 8054), (4027, 5330)]