20623005

素因数分解:

$3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3917}}^1$

素因数の和:3947

約数の個数: 40

約数和(自身を含む): 39822552

約数和(自身を除く): 19199547

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 81, 117, 135, 195, 351, 405, 585, 1053, 1755, 3917, 5265, 11751, 19585, 35253, 50921, 58755, 105759, 152763, 176265, 254605, 317277, 458289, 528795, 763815, 1374867, 1586385, 2291445, 4124601, 6874335, 20623005]

約数ペア:

[(1, 20623005), (3, 6874335), (5, 4124601), (9, 2291445), (13, 1586385), (15, 1374867), (27, 763815), (39, 528795), (45, 458289), (65, 317277), (81, 254605), (117, 176265), (135, 152763), (195, 105759), (351, 58755), (405, 50921), (585, 35253), (1053, 19585), (1755, 11751), (3917, 5265)]