19912314645

素因数分解:

$3^4\times 5^1\times {\mathrm{401}}^1\times {\mathrm{122609}}^1$

素因数の和:123027

約数の個数: 40

約数和(自身を含む): 35783973720

約数和(自身を除く): 15871659075

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 401, 405, 1203, 2005, 3609, 6015, 10827, 18045, 32481, 54135, 122609, 162405, 367827, 613045, 1103481, 1839135, 3310443, 5517405, 9931329, 16552215, 49166209, 49656645, 147498627, 245831045, 442495881, 737493135, 1327487643, 2212479405, 3982462929, 6637438215, 19912314645]

約数ペア:

[(1, 19912314645), (3, 6637438215), (5, 3982462929), (9, 2212479405), (15, 1327487643), (27, 737493135), (45, 442495881), (81, 245831045), (135, 147498627), (401, 49656645), (405, 49166209), (1203, 16552215), (2005, 9931329), (3609, 5517405), (6015, 3310443), (10827, 1839135), (18045, 1103481), (32481, 613045), (54135, 367827), (122609, 162405)]