18478785

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{491}}^1$

素因数の和:705

約数の個数: 32

約数和(自身を含む): 32070528

約数和(自身を除く): 13591743

約数列:

[1, 3, 5, 13, 15, 39, 65, 193, 195, 491, 579, 965, 1473, 2455, 2509, 2895, 6383, 7365, 7527, 12545, 19149, 31915, 37635, 94763, 95745, 284289, 473815, 1231919, 1421445, 3695757, 6159595, 18478785]

約数ペア:

[(1, 18478785), (3, 6159595), (5, 3695757), (13, 1421445), (15, 1231919), (39, 473815), (65, 284289), (193, 95745), (195, 94763), (491, 37635), (579, 31915), (965, 19149), (1473, 12545), (2455, 7527), (2509, 7365), (2895, 6383)]