20691645

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{3659}}^1$

素因数の和:3709

約数の個数: 32

約数和(自身を含む): 36892800

約数和(自身を除く): 16201155

約数列:

[1, 3, 5, 13, 15, 29, 39, 65, 87, 145, 195, 377, 435, 1131, 1885, 3659, 5655, 10977, 18295, 47567, 54885, 106111, 142701, 237835, 318333, 530555, 713505, 1379443, 1591665, 4138329, 6897215, 20691645]

約数ペア:

[(1, 20691645), (3, 6897215), (5, 4138329), (13, 1591665), (15, 1379443), (29, 713505), (39, 530555), (65, 318333), (87, 237835), (145, 142701), (195, 106111), (377, 54885), (435, 47567), (1131, 18295), (1885, 10977), (3659, 5655)]