18393405

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{4243}}^1$

素因数の和:4285

約数の個数: 24

約数和(自身を含む): 31269792

約数和(自身を除く): 12876387

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 289, 867, 1445, 4243, 4335, 12729, 21215, 63645, 72131, 216393, 360655, 1081965, 1226227, 3678681, 6131135, 18393405]

約数ペア:

[(1, 18393405), (3, 6131135), (5, 3678681), (15, 1226227), (17, 1081965), (51, 360655), (85, 216393), (255, 72131), (289, 63645), (867, 21215), (1445, 12729), (4243, 4335)]