19575855

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{307}}^1$

素因数の和:440

約数の個数: 48

約数和(自身を含む): 36996960

約数和(自身を除く): 17421105

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 109, 117, 195, 307, 327, 545, 585, 921, 981, 1417, 1535, 1635, 2763, 3991, 4251, 4605, 4905, 7085, 11973, 12753, 13815, 19955, 21255, 33463, 35919, 59865, 63765, 100389, 167315, 179595, 301167, 435019, 501945, 1305057, 1505835, 2175095, 3915171, 6525285, 19575855]

約数ペア:

[(1, 19575855), (3, 6525285), (5, 3915171), (9, 2175095), (13, 1505835), (15, 1305057), (39, 501945), (45, 435019), (65, 301167), (109, 179595), (117, 167315), (195, 100389), (307, 63765), (327, 59865), (545, 35919), (585, 33463), (921, 21255), (981, 19955), (1417, 13815), (1535, 12753), (1635, 11973), (2763, 7085), (3991, 4905), (4251, 4605)]