20969970

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1637}}^1$

素因数の和:1715

約数の個数: 64

約数和(自身を含む): 58496256

約数和(自身を除く): 37526286

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 61, 70, 105, 122, 183, 210, 305, 366, 427, 610, 854, 915, 1281, 1637, 1830, 2135, 2562, 3274, 4270, 4911, 6405, 8185, 9822, 11459, 12810, 16370, 22918, 24555, 34377, 49110, 57295, 68754, 99857, 114590, 171885, 199714, 299571, 343770, 499285, 599142, 698999, 998570, 1397998, 1497855, 2096997, 2995710, 3494995, 4193994, 6989990, 10484985, 20969970]

約数ペア:

[(1, 20969970), (2, 10484985), (3, 6989990), (5, 4193994), (6, 3494995), (7, 2995710), (10, 2096997), (14, 1497855), (15, 1397998), (21, 998570), (30, 698999), (35, 599142), (42, 499285), (61, 343770), (70, 299571), (105, 199714), (122, 171885), (183, 114590), (210, 99857), (305, 68754), (366, 57295), (427, 49110), (610, 34377), (854, 24555), (915, 22918), (1281, 16370), (1637, 12810), (1830, 11459), (2135, 9822), (2562, 8185), (3274, 6405), (4270, 4911)]