16864731

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:236

約数の個数: 48

約数和(自身を含む): 28435680

約数和(自身を除く): 11570949

約数列:

[1, 3, 9, 13, 17, 39, 51, 61, 117, 139, 153, 183, 221, 417, 549, 663, 793, 1037, 1251, 1807, 1989, 2363, 2379, 3111, 5421, 7089, 7137, 8479, 9333, 13481, 16263, 21267, 25437, 30719, 40443, 76311, 92157, 110227, 121329, 144143, 276471, 330681, 432429, 992043, 1297287, 1873859, 5621577, 16864731]

約数ペア:

[(1, 16864731), (3, 5621577), (9, 1873859), (13, 1297287), (17, 992043), (39, 432429), (51, 330681), (61, 276471), (117, 144143), (139, 121329), (153, 110227), (183, 92157), (221, 76311), (417, 40443), (549, 30719), (663, 25437), (793, 21267), (1037, 16263), (1251, 13481), (1807, 9333), (1989, 8479), (2363, 7137), (2379, 7089), (3111, 5421)]