21898616

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{139}}^1\times {\mathrm{419}}^1$

素因数の和:611

約数の個数: 32

約数和(自身を含む): 42336000

約数和(自身を除く): 20437384

約数列:

[1, 2, 4, 8, 47, 94, 139, 188, 278, 376, 419, 556, 838, 1112, 1676, 3352, 6533, 13066, 19693, 26132, 39386, 52264, 58241, 78772, 116482, 157544, 232964, 465928, 2737327, 5474654, 10949308, 21898616]

約数ペア:

[(1, 21898616), (2, 10949308), (4, 5474654), (8, 2737327), (47, 465928), (94, 232964), (139, 157544), (188, 116482), (278, 78772), (376, 58241), (419, 52264), (556, 39386), (838, 26132), (1112, 19693), (1676, 13066), (3352, 6533)]