20097285

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{4481}}^1$

素因数の和:4525

約数の個数: 32

約数和(自身を含む): 36142848

約数和(自身を除く): 16045563

約数列:

[1, 3, 5, 13, 15, 23, 39, 65, 69, 115, 195, 299, 345, 897, 1495, 4481, 4485, 13443, 22405, 58253, 67215, 103063, 174759, 291265, 309189, 515315, 873795, 1339819, 1545945, 4019457, 6699095, 20097285]

約数ペア:

[(1, 20097285), (3, 6699095), (5, 4019457), (13, 1545945), (15, 1339819), (23, 873795), (39, 515315), (65, 309189), (69, 291265), (115, 174759), (195, 103063), (299, 67215), (345, 58253), (897, 22405), (1495, 13443), (4481, 4485)]