21869960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{2111}}^1$

素因数の和:2166

約数の個数: 64

約数和(自身を含む): 57784320

約数和(自身を除く): 35914360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 70, 74, 140, 148, 185, 259, 280, 296, 370, 518, 740, 1036, 1295, 1480, 2072, 2111, 2590, 4222, 5180, 8444, 10360, 10555, 14777, 16888, 21110, 29554, 42220, 59108, 73885, 78107, 84440, 118216, 147770, 156214, 295540, 312428, 390535, 546749, 591080, 624856, 781070, 1093498, 1562140, 2186996, 2733745, 3124280, 4373992, 5467490, 10934980, 21869960]

約数ペア:

[(1, 21869960), (2, 10934980), (4, 5467490), (5, 4373992), (7, 3124280), (8, 2733745), (10, 2186996), (14, 1562140), (20, 1093498), (28, 781070), (35, 624856), (37, 591080), (40, 546749), (56, 390535), (70, 312428), (74, 295540), (140, 156214), (148, 147770), (185, 118216), (259, 84440), (280, 78107), (296, 73885), (370, 59108), (518, 42220), (740, 29554), (1036, 21110), (1295, 16888), (1480, 14777), (2072, 10555), (2111, 10360), (2590, 8444), (4222, 5180)]