2021189128

素因数分解:

$2^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{12589}}^1$

素因数の和:12710

約数の個数: 64

約数和(自身を含む): 4496140800

約数和(自身を除く): 2474951672

約数列:

[1, 2, 4, 7, 8, 14, 28, 47, 56, 61, 94, 122, 188, 244, 329, 376, 427, 488, 658, 854, 1316, 1708, 2632, 2867, 3416, 5734, 11468, 12589, 20069, 22936, 25178, 40138, 50356, 80276, 88123, 100712, 160552, 176246, 352492, 591683, 704984, 767929, 1183366, 1535858, 2366732, 3071716, 4141781, 4733464, 5375503, 6143432, 8283562, 10751006, 16567124, 21502012, 33134248, 36092663, 43004024, 72185326, 144370652, 252648641, 288741304, 505297282, 1010594564, 2021189128]

約数ペア:

[(1, 2021189128), (2, 1010594564), (4, 505297282), (7, 288741304), (8, 252648641), (14, 144370652), (28, 72185326), (47, 43004024), (56, 36092663), (61, 33134248), (94, 21502012), (122, 16567124), (188, 10751006), (244, 8283562), (329, 6143432), (376, 5375503), (427, 4733464), (488, 4141781), (658, 3071716), (854, 2366732), (1316, 1535858), (1708, 1183366), (2632, 767929), (2867, 704984), (3416, 591683), (5734, 352492), (11468, 176246), (12589, 160552), (20069, 100712), (22936, 88123), (25178, 80276), (40138, 50356)]