18103865

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{137}}^1$

素因数の和:281

約数の個数: 32

約数和(自身を含む): 25038720

約数和(自身を除く): 6934855

約数列:

[1, 5, 13, 19, 65, 95, 107, 137, 247, 535, 685, 1235, 1391, 1781, 2033, 2603, 6955, 8905, 10165, 13015, 14659, 26429, 33839, 73295, 132145, 169195, 190567, 278521, 952835, 1392605, 3620773, 18103865]

約数ペア:

[(1, 18103865), (5, 3620773), (13, 1392605), (19, 952835), (65, 278521), (95, 190567), (107, 169195), (137, 132145), (247, 73295), (535, 33839), (685, 26429), (1235, 14659), (1391, 13015), (1781, 10165), (2033, 8905), (2603, 6955)]