20964870

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{3191}}^1$

素因数の和:3277

約数の個数: 48

約数和(自身を含む): 55272672

約数和(自身を除く): 34307802

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 73, 90, 146, 219, 365, 438, 657, 730, 1095, 1314, 2190, 3191, 3285, 6382, 6570, 9573, 15955, 19146, 28719, 31910, 47865, 57438, 95730, 143595, 232943, 287190, 465886, 698829, 1164715, 1397658, 2096487, 2329430, 3494145, 4192974, 6988290, 10482435, 20964870]

約数ペア:

[(1, 20964870), (2, 10482435), (3, 6988290), (5, 4192974), (6, 3494145), (9, 2329430), (10, 2096487), (15, 1397658), (18, 1164715), (30, 698829), (45, 465886), (73, 287190), (90, 232943), (146, 143595), (219, 95730), (365, 57438), (438, 47865), (657, 31910), (730, 28719), (1095, 19146), (1314, 15955), (2190, 9573), (3191, 6570), (3285, 6382)]