20113555

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{587}}^1$

素因数の和:699

約数の個数: 32

約数和(自身を含む): 30481920

約数和(自身を除く): 10368365

約数列:

[1, 5, 7, 11, 35, 55, 77, 89, 385, 445, 587, 623, 979, 2935, 3115, 4109, 4895, 6457, 6853, 20545, 32285, 34265, 45199, 52243, 225995, 261215, 365701, 574673, 1828505, 2873365, 4022711, 20113555]

約数ペア:

[(1, 20113555), (5, 4022711), (7, 2873365), (11, 1828505), (35, 574673), (55, 365701), (77, 261215), (89, 225995), (385, 52243), (445, 45199), (587, 34265), (623, 32285), (979, 20545), (2935, 6853), (3115, 6457), (4109, 4895)]