16908885

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{617}}^1$

素因数の和:667

約数の個数: 64

約数和(自身を含む): 35596800

約数和(自身を除く): 18687915

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 29, 35, 45, 63, 87, 105, 135, 145, 189, 203, 261, 315, 435, 609, 617, 783, 945, 1015, 1305, 1827, 1851, 3045, 3085, 3915, 4319, 5481, 5553, 9135, 9255, 12957, 16659, 17893, 21595, 27405, 27765, 38871, 53679, 64785, 83295, 89465, 116613, 125251, 161037, 194355, 268395, 375753, 483111, 583065, 626255, 805185, 1127259, 1878765, 2415555, 3381777, 5636295, 16908885]

約数ペア:

[(1, 16908885), (3, 5636295), (5, 3381777), (7, 2415555), (9, 1878765), (15, 1127259), (21, 805185), (27, 626255), (29, 583065), (35, 483111), (45, 375753), (63, 268395), (87, 194355), (105, 161037), (135, 125251), (145, 116613), (189, 89465), (203, 83295), (261, 64785), (315, 53679), (435, 38871), (609, 27765), (617, 27405), (783, 21595), (945, 17893), (1015, 16659), (1305, 12957), (1827, 9255), (1851, 9135), (3045, 5553), (3085, 5481), (3915, 4319)]