20005974009

素因数分解:

$3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{1999}}^1\times {\mathrm{2371}}^1$

素因数の和:4450

約数の個数: 48

約数和(自身を含む): 33549568000

約数和(自身を除く): 13543593991

約数列:

[1, 3, 7, 9, 21, 63, 67, 201, 469, 603, 1407, 1999, 2371, 4221, 5997, 7113, 13993, 16597, 17991, 21339, 41979, 49791, 125937, 133933, 149373, 158857, 401799, 476571, 937531, 1111999, 1205397, 1429713, 2812593, 3335997, 4739629, 8437779, 10007991, 14218887, 33177403, 42656661, 99532209, 298596627, 317555143, 952665429, 2222886001, 2857996287, 6668658003, 20005974009]

約数ペア:

[(1, 20005974009), (3, 6668658003), (7, 2857996287), (9, 2222886001), (21, 952665429), (63, 317555143), (67, 298596627), (201, 99532209), (469, 42656661), (603, 33177403), (1407, 14218887), (1999, 10007991), (2371, 8437779), (4221, 4739629), (5997, 3335997), (7113, 2812593), (13993, 1429713), (16597, 1205397), (17991, 1111999), (21339, 937531), (41979, 476571), (49791, 401799), (125937, 158857), (133933, 149373)]