21979084

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{107}}^1\times {\mathrm{577}}^1$

素因数の和:777

約数の個数: 24

約数和(自身を含む): 39327120

約数和(自身を除く): 17348036

約数列:

[1, 2, 4, 89, 107, 178, 214, 356, 428, 577, 1154, 2308, 9523, 19046, 38092, 51353, 61739, 102706, 123478, 205412, 246956, 5494771, 10989542, 21979084]

約数ペア:

[(1, 21979084), (2, 10989542), (4, 5494771), (89, 246956), (107, 205412), (178, 123478), (214, 102706), (356, 61739), (428, 51353), (577, 38092), (1154, 19046), (2308, 9523)]