20513535

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{2473}}^1$

素因数の和:2567

約数の個数: 32

約数和(自身を含む): 38000640

約数和(自身を除く): 17487105

約数列:

[1, 3, 5, 7, 15, 21, 35, 79, 105, 237, 395, 553, 1185, 1659, 2473, 2765, 7419, 8295, 12365, 17311, 37095, 51933, 86555, 195367, 259665, 586101, 976835, 1367569, 2930505, 4102707, 6837845, 20513535]

約数ペア:

[(1, 20513535), (3, 6837845), (5, 4102707), (7, 2930505), (15, 1367569), (21, 976835), (35, 586101), (79, 259665), (105, 195367), (237, 86555), (395, 51933), (553, 37095), (1185, 17311), (1659, 12365), (2473, 8295), (2765, 7419)]