19985205

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{45943}}^1$

素因数の和:45980

約数の個数: 16

約数和(自身を含む): 33079680

約数和(自身を除く): 13094475

約数列:

[1, 3, 5, 15, 29, 87, 145, 435, 45943, 137829, 229715, 689145, 1332347, 3997041, 6661735, 19985205]

約数ペア:

[(1, 19985205), (3, 6661735), (5, 3997041), (15, 1332347), (29, 689145), (87, 229715), (145, 137829), (435, 45943)]