21036804

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{691}}^1$

素因数の和:800

約数の個数: 48

約数和(自身を含む): 51152640

約数和(自身を除く): 30115836

約数列:

[1, 2, 3, 4, 6, 12, 43, 59, 86, 118, 129, 172, 177, 236, 258, 354, 516, 691, 708, 1382, 2073, 2537, 2764, 4146, 5074, 7611, 8292, 10148, 15222, 29713, 30444, 40769, 59426, 81538, 89139, 118852, 122307, 163076, 178278, 244614, 356556, 489228, 1753067, 3506134, 5259201, 7012268, 10518402, 21036804]

約数ペア:

[(1, 21036804), (2, 10518402), (3, 7012268), (4, 5259201), (6, 3506134), (12, 1753067), (43, 489228), (59, 356556), (86, 244614), (118, 178278), (129, 163076), (172, 122307), (177, 118852), (236, 89139), (258, 81538), (354, 59426), (516, 40769), (691, 30444), (708, 29713), (1382, 15222), (2073, 10148), (2537, 8292), (2764, 7611), (4146, 5074)]