16561265

素因数分解:

$5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{2939}}^1$

素因数の和:2981

約数の個数: 24

約数和(自身を含む): 24131520

約数和(自身を除く): 7570255

約数列:

[1, 5, 7, 23, 35, 49, 115, 161, 245, 805, 1127, 2939, 5635, 14695, 20573, 67597, 102865, 144011, 337985, 473179, 720055, 2365895, 3312253, 16561265]

約数ペア:

[(1, 16561265), (5, 3312253), (7, 2365895), (23, 720055), (35, 473179), (49, 337985), (115, 144011), (161, 102865), (245, 67597), (805, 20573), (1127, 14695), (2939, 5635)]