20749335

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{439}}^1$

素因数の和:607

約数の個数: 32

約数和(自身を含む): 34974720

約数和(自身を除く): 14225385

約数列:

[1, 3, 5, 15, 23, 69, 115, 137, 345, 411, 439, 685, 1317, 2055, 2195, 3151, 6585, 9453, 10097, 15755, 30291, 47265, 50485, 60143, 151455, 180429, 300715, 902145, 1383289, 4149867, 6916445, 20749335]

約数ペア:

[(1, 20749335), (3, 6916445), (5, 4149867), (15, 1383289), (23, 902145), (69, 300715), (115, 180429), (137, 151455), (345, 60143), (411, 50485), (439, 47265), (685, 30291), (1317, 15755), (2055, 10097), (2195, 9453), (3151, 6585)]