19901644

素因数分解:

$2^2\times 7^2\times {\mathrm{59}}^1\times {\mathrm{1721}}^1$

素因数の和:1798

約数の個数: 36

約数和(自身を含む): 41224680

約数和(自身を除く): 21323036

約数列:

[1, 2, 4, 7, 14, 28, 49, 59, 98, 118, 196, 236, 413, 826, 1652, 1721, 2891, 3442, 5782, 6884, 11564, 12047, 24094, 48188, 84329, 101539, 168658, 203078, 337316, 406156, 710773, 1421546, 2843092, 4975411, 9950822, 19901644]

約数ペア:

[(1, 19901644), (2, 9950822), (4, 4975411), (7, 2843092), (14, 1421546), (28, 710773), (49, 406156), (59, 337316), (98, 203078), (118, 168658), (196, 101539), (236, 84329), (413, 48188), (826, 24094), (1652, 12047), (1721, 11564), (2891, 6884), (3442, 5782)]