20495565

素因数分解:

$3^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{967}}^1$

素因数の和:1138

約数の個数: 32

約数和(自身を含む): 36706560

約数和(自身を除く): 16210995

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 157, 471, 785, 967, 1413, 2355, 2901, 4239, 4835, 7065, 8703, 14505, 21195, 26109, 43515, 130545, 151819, 455457, 759095, 1366371, 2277285, 4099113, 6831855, 20495565]

約数ペア:

[(1, 20495565), (3, 6831855), (5, 4099113), (9, 2277285), (15, 1366371), (27, 759095), (45, 455457), (135, 151819), (157, 130545), (471, 43515), (785, 26109), (967, 21195), (1413, 14505), (2355, 8703), (2901, 7065), (4239, 4835)]