21787154

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1$

素因数の和:290

約数の個数: 32

約数和(自身を含む): 35392896

約数和(自身を除く): 13605742

約数列:

[1, 2, 37, 41, 43, 74, 82, 86, 167, 334, 1517, 1591, 1763, 3034, 3182, 3526, 6179, 6847, 7181, 12358, 13694, 14362, 65231, 130462, 253339, 265697, 294421, 506678, 531394, 588842, 10893577, 21787154]

約数ペア:

[(1, 21787154), (2, 10893577), (37, 588842), (41, 531394), (43, 506678), (74, 294421), (82, 265697), (86, 253339), (167, 130462), (334, 65231), (1517, 14362), (1591, 13694), (1763, 12358), (3034, 7181), (3182, 6847), (3526, 6179)]