18919028

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{4561}}^1$

素因数の和:4643

約数の個数: 24

約数和(自身を含む): 35638344

約数和(自身を除く): 16719316

約数列:

[1, 2, 4, 17, 34, 61, 68, 122, 244, 1037, 2074, 4148, 4561, 9122, 18244, 77537, 155074, 278221, 310148, 556442, 1112884, 4729757, 9459514, 18919028]

約数ペア:

[(1, 18919028), (2, 9459514), (4, 4729757), (17, 1112884), (34, 556442), (61, 310148), (68, 278221), (122, 155074), (244, 77537), (1037, 18244), (2074, 9122), (4148, 4561)]