20599605

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1531}}^1$

素因数の和:1578

約数の個数: 48

約数和(自身を含む): 40150656

約数和(自身を除く): 19551051

約数列:

[1, 3, 5, 9, 13, 15, 23, 39, 45, 65, 69, 115, 117, 195, 207, 299, 345, 585, 897, 1035, 1495, 1531, 2691, 4485, 4593, 7655, 13455, 13779, 19903, 22965, 35213, 59709, 68895, 99515, 105639, 176065, 179127, 298545, 316917, 457769, 528195, 895635, 1373307, 1584585, 2288845, 4119921, 6866535, 20599605]

約数ペア:

[(1, 20599605), (3, 6866535), (5, 4119921), (9, 2288845), (13, 1584585), (15, 1373307), (23, 895635), (39, 528195), (45, 457769), (65, 316917), (69, 298545), (115, 179127), (117, 176065), (195, 105639), (207, 99515), (299, 68895), (345, 59709), (585, 35213), (897, 22965), (1035, 19903), (1495, 13779), (1531, 13455), (2691, 7655), (4485, 4593)]