28905135

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{11969}}^1$

素因数の和:12007

約数の個数: 32

約数和(自身を含む): 55157760

約数和(自身を除く): 26252625

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 69, 105, 115, 161, 345, 483, 805, 2415, 11969, 35907, 59845, 83783, 179535, 251349, 275287, 418915, 825861, 1256745, 1376435, 1927009, 4129305, 5781027, 9635045, 28905135]

約数ペア:

[(1, 28905135), (3, 9635045), (5, 5781027), (7, 4129305), (15, 1927009), (21, 1376435), (23, 1256745), (35, 825861), (69, 418915), (105, 275287), (115, 251349), (161, 179535), (345, 83783), (483, 59845), (805, 35907), (2415, 11969)]