28168515

素因数分解:

$3^2\times 5^1\times {\mathrm{661}}^1\times {\mathrm{947}}^1$

素因数の和:1619

約数の個数: 24

約数和(自身を含む): 48950928

約数和(自身を除く): 20782413

約数列:

[1, 3, 5, 9, 15, 45, 661, 947, 1983, 2841, 3305, 4735, 5949, 8523, 9915, 14205, 29745, 42615, 625967, 1877901, 3129835, 5633703, 9389505, 28168515]

約数ペア:

[(1, 28168515), (3, 9389505), (5, 5633703), (9, 3129835), (15, 1877901), (45, 625967), (661, 42615), (947, 29745), (1983, 14205), (2841, 9915), (3305, 8523), (4735, 5949)]