20733885

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{167}}^1$

素因数の和:298

約数の個数: 48

約数和(自身を含む): 37739520

約数和(自身を除く): 17005635

約数列:

[1, 3, 5, 9, 15, 31, 45, 89, 93, 155, 167, 267, 279, 445, 465, 501, 801, 835, 1335, 1395, 1503, 2505, 2759, 4005, 5177, 7515, 8277, 13795, 14863, 15531, 24831, 25885, 41385, 44589, 46593, 74315, 77655, 124155, 133767, 222945, 232965, 460753, 668835, 1382259, 2303765, 4146777, 6911295, 20733885]

約数ペア:

[(1, 20733885), (3, 6911295), (5, 4146777), (9, 2303765), (15, 1382259), (31, 668835), (45, 460753), (89, 232965), (93, 222945), (155, 133767), (167, 124155), (267, 77655), (279, 74315), (445, 46593), (465, 44589), (501, 41385), (801, 25885), (835, 24831), (1335, 15531), (1395, 14863), (1503, 13795), (2505, 8277), (2759, 7515), (4005, 5177)]