19743945

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^2$

素因数の和:186

約数の個数: 48

約数和(自身を含む): 36308160

約数和(自身を除く): 16564215

約数列:

[1, 3, 5, 13, 15, 19, 39, 57, 65, 73, 95, 195, 219, 247, 285, 365, 741, 949, 1095, 1235, 1387, 2847, 3705, 4161, 4745, 5329, 6935, 14235, 15987, 18031, 20805, 26645, 54093, 69277, 79935, 90155, 101251, 207831, 270465, 303753, 346385, 506255, 1039155, 1316263, 1518765, 3948789, 6581315, 19743945]

約数ペア:

[(1, 19743945), (3, 6581315), (5, 3948789), (13, 1518765), (15, 1316263), (19, 1039155), (39, 506255), (57, 346385), (65, 303753), (73, 270465), (95, 207831), (195, 101251), (219, 90155), (247, 79935), (285, 69277), (365, 54093), (741, 26645), (949, 20805), (1095, 18031), (1235, 15987), (1387, 14235), (2847, 6935), (3705, 5329), (4161, 4745)]