20838216

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1747}}^1$

素因数の和:1834

約数の個数: 64

約数和(自身を含む): 60410880

約数和(自身を除く): 39572664

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 71, 84, 142, 168, 213, 284, 426, 497, 568, 852, 994, 1491, 1704, 1747, 1988, 2982, 3494, 3976, 5241, 5964, 6988, 10482, 11928, 12229, 13976, 20964, 24458, 36687, 41928, 48916, 73374, 97832, 124037, 146748, 248074, 293496, 372111, 496148, 744222, 868259, 992296, 1488444, 1736518, 2604777, 2976888, 3473036, 5209554, 6946072, 10419108, 20838216]

約数ペア:

[(1, 20838216), (2, 10419108), (3, 6946072), (4, 5209554), (6, 3473036), (7, 2976888), (8, 2604777), (12, 1736518), (14, 1488444), (21, 992296), (24, 868259), (28, 744222), (42, 496148), (56, 372111), (71, 293496), (84, 248074), (142, 146748), (168, 124037), (213, 97832), (284, 73374), (426, 48916), (497, 41928), (568, 36687), (852, 24458), (994, 20964), (1491, 13976), (1704, 12229), (1747, 11928), (1988, 10482), (2982, 6988), (3494, 5964), (3976, 5241)]