21091130

素因数分解:

$2^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{25411}}^1$

素因数の和:25501

約数の個数: 16

約数和(自身を含む): 38422944

約数和(自身を除く): 17331814

約数列:

[1, 2, 5, 10, 83, 166, 415, 830, 25411, 50822, 127055, 254110, 2109113, 4218226, 10545565, 21091130]

約数ペア:

[(1, 21091130), (2, 10545565), (5, 4218226), (10, 2109113), (83, 254110), (166, 127055), (415, 50822), (830, 25411)]