21687820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{14083}}^1$

素因数の和:14110

約数の個数: 48

約数和(自身を含む): 56786688

約数和(自身を除く): 35098868

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 14083, 28166, 56332, 70415, 98581, 140830, 154913, 197162, 281660, 309826, 394324, 492905, 619652, 774565, 985810, 1084391, 1549130, 1971620, 2168782, 3098260, 4337564, 5421955, 10843910, 21687820]

約数ペア:

[(1, 21687820), (2, 10843910), (4, 5421955), (5, 4337564), (7, 3098260), (10, 2168782), (11, 1971620), (14, 1549130), (20, 1084391), (22, 985810), (28, 774565), (35, 619652), (44, 492905), (55, 394324), (70, 309826), (77, 281660), (110, 197162), (140, 154913), (154, 140830), (220, 98581), (308, 70415), (385, 56332), (770, 28166), (1540, 14083)]