21308778

素因数分解:

$2^1\times 3^3\times {\mathrm{101}}^1\times {\mathrm{3907}}^1$

素因数の和:4019

約数の個数: 32

約数和(自身を含む): 47833920

約数和(自身を除く): 26525142

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 101, 202, 303, 606, 909, 1818, 2727, 3907, 5454, 7814, 11721, 23442, 35163, 70326, 105489, 210978, 394607, 789214, 1183821, 2367642, 3551463, 7102926, 10654389, 21308778]

約数ペア:

[(1, 21308778), (2, 10654389), (3, 7102926), (6, 3551463), (9, 2367642), (18, 1183821), (27, 789214), (54, 394607), (101, 210978), (202, 105489), (303, 70326), (606, 35163), (909, 23442), (1818, 11721), (2727, 7814), (3907, 5454)]