20236515

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{661}}^1$

素因数の和:839

約数の個数: 32

約数和(自身を含む): 35144256

約数和(自身を除く): 14907741

約数列:

[1, 3, 5, 13, 15, 39, 65, 157, 195, 471, 661, 785, 1983, 2041, 2355, 3305, 6123, 8593, 9915, 10205, 25779, 30615, 42965, 103777, 128895, 311331, 518885, 1349101, 1556655, 4047303, 6745505, 20236515]

約数ペア:

[(1, 20236515), (3, 6745505), (5, 4047303), (13, 1556655), (15, 1349101), (39, 518885), (65, 311331), (157, 128895), (195, 103777), (471, 42965), (661, 30615), (785, 25779), (1983, 10205), (2041, 9915), (2355, 8593), (3305, 6123)]