21082515

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{23041}}^1$

素因数の和:23110

約数の個数: 16

約数和(自身を含む): 34286496

約数和(自身を除く): 13203981

約数列:

[1, 3, 5, 15, 61, 183, 305, 915, 23041, 69123, 115205, 345615, 1405501, 4216503, 7027505, 21082515]

約数ペア:

[(1, 21082515), (3, 7027505), (5, 4216503), (15, 1405501), (61, 345615), (183, 115205), (305, 69123), (915, 23041)]