21783140

素因数分解:

$2^2\times 5^1\times {\mathrm{773}}^1\times {\mathrm{1409}}^1$

素因数の和:2191

約数の個数: 24

約数和(自身を含む): 45836280

約数和(自身を除く): 24053140

約数列:

[1, 2, 4, 5, 10, 20, 773, 1409, 1546, 2818, 3092, 3865, 5636, 7045, 7730, 14090, 15460, 28180, 1089157, 2178314, 4356628, 5445785, 10891570, 21783140]

約数ペア:

[(1, 21783140), (2, 10891570), (4, 5445785), (5, 4356628), (10, 2178314), (20, 1089157), (773, 28180), (1409, 15460), (1546, 14090), (2818, 7730), (3092, 7045), (3865, 5636)]