18679185

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3121}}^1$

素因数の和:3158

約数の個数: 48

約数和(自身を含む): 38962560

約数和(自身を除く): 20283375

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 35, 45, 57, 63, 95, 105, 133, 171, 285, 315, 399, 665, 855, 1197, 1995, 3121, 5985, 9363, 15605, 21847, 28089, 46815, 59299, 65541, 109235, 140445, 177897, 196623, 296495, 327705, 415093, 533691, 889485, 983115, 1245279, 2075465, 2668455, 3735837, 6226395, 18679185]

約数ペア:

[(1, 18679185), (3, 6226395), (5, 3735837), (7, 2668455), (9, 2075465), (15, 1245279), (19, 983115), (21, 889485), (35, 533691), (45, 415093), (57, 327705), (63, 296495), (95, 196623), (105, 177897), (133, 140445), (171, 109235), (285, 65541), (315, 59299), (399, 46815), (665, 28089), (855, 21847), (1197, 15605), (1995, 9363), (3121, 5985)]