28909965

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{11971}}^1$

素因数の和:12009

約数の個数: 32

約数和(自身を含む): 55166976

約数和(自身を除く): 26257011

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 69, 105, 115, 161, 345, 483, 805, 2415, 11971, 35913, 59855, 83797, 179565, 251391, 275333, 418985, 825999, 1256955, 1376665, 1927331, 4129995, 5781993, 9636655, 28909965]

約数ペア:

[(1, 28909965), (3, 9636655), (5, 5781993), (7, 4129995), (15, 1927331), (21, 1376665), (23, 1256955), (35, 825999), (69, 418985), (105, 275333), (115, 251391), (161, 179565), (345, 83797), (483, 59855), (805, 35913), (2415, 11971)]