19847295

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{263}}^1$

素因数の和:333

約数の個数: 64

約数和(自身を含む): 39029760

約数和(自身を除く): 19182465

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 43, 45, 65, 117, 129, 135, 195, 215, 263, 351, 387, 559, 585, 645, 789, 1161, 1315, 1677, 1755, 1935, 2367, 2795, 3419, 3945, 5031, 5805, 7101, 8385, 10257, 11309, 11835, 15093, 17095, 25155, 30771, 33927, 35505, 51285, 56545, 75465, 92313, 101781, 147017, 153855, 169635, 305343, 441051, 461565, 508905, 735085, 1323153, 1526715, 2205255, 3969459, 6615765, 19847295]

約数ペア:

[(1, 19847295), (3, 6615765), (5, 3969459), (9, 2205255), (13, 1526715), (15, 1323153), (27, 735085), (39, 508905), (43, 461565), (45, 441051), (65, 305343), (117, 169635), (129, 153855), (135, 147017), (195, 101781), (215, 92313), (263, 75465), (351, 56545), (387, 51285), (559, 35505), (585, 33927), (645, 30771), (789, 25155), (1161, 17095), (1315, 15093), (1677, 11835), (1755, 11309), (1935, 10257), (2367, 8385), (2795, 7101), (3419, 5805), (3945, 5031)]