20719465

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{2111}}^1$

素因数の和:2280

約数の個数: 16

約数和(自身を含む): 26966016

約数和(自身を除く): 6246551

約数列:

[1, 5, 13, 65, 151, 755, 1963, 2111, 9815, 10555, 27443, 137215, 318761, 1593805, 4143893, 20719465]

約数ペア:

[(1, 20719465), (5, 4143893), (13, 1593805), (65, 318761), (151, 137215), (755, 27443), (1963, 10555), (2111, 9815)]