21071148

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{1831}}^1$

素因数の和:1982

約数の個数: 48

約数和(自身を含む): 56630784

約数和(自身を除く): 35559636

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 137, 274, 411, 548, 822, 959, 1644, 1831, 1918, 2877, 3662, 3836, 5493, 5754, 7324, 10986, 11508, 12817, 21972, 25634, 38451, 51268, 76902, 153804, 250847, 501694, 752541, 1003388, 1505082, 1755929, 3010164, 3511858, 5267787, 7023716, 10535574, 21071148]

約数ペア:

[(1, 21071148), (2, 10535574), (3, 7023716), (4, 5267787), (6, 3511858), (7, 3010164), (12, 1755929), (14, 1505082), (21, 1003388), (28, 752541), (42, 501694), (84, 250847), (137, 153804), (274, 76902), (411, 51268), (548, 38451), (822, 25634), (959, 21972), (1644, 12817), (1831, 11508), (1918, 10986), (2877, 7324), (3662, 5754), (3836, 5493)]