21583835

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:168

約数の個数: 48

約数和(自身を含む): 33203520

約数和(自身を除く): 11619685

約数列:

[1, 5, 7, 13, 35, 41, 65, 89, 91, 169, 205, 287, 445, 455, 533, 623, 845, 1157, 1183, 1435, 2665, 3115, 3649, 3731, 5785, 5915, 6929, 8099, 15041, 18245, 18655, 25543, 34645, 40495, 47437, 48503, 75205, 105287, 127715, 237185, 242515, 332059, 526435, 616681, 1660295, 3083405, 4316767, 21583835]

約数ペア:

[(1, 21583835), (5, 4316767), (7, 3083405), (13, 1660295), (35, 616681), (41, 526435), (65, 332059), (89, 242515), (91, 237185), (169, 127715), (205, 105287), (287, 75205), (445, 48503), (455, 47437), (533, 40495), (623, 34645), (845, 25543), (1157, 18655), (1183, 18245), (1435, 15041), (2665, 8099), (3115, 6929), (3649, 5915), (3731, 5785)]