18818235

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{1447}}^1$

素因数の和:1492

約数の個数: 36

約数和(自身を含む): 34673808

約数和(自身を除く): 15855573

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 289, 765, 867, 1445, 1447, 2601, 4335, 4341, 7235, 13005, 13023, 21705, 24599, 65115, 73797, 122995, 221391, 368985, 418183, 1106955, 1254549, 2090915, 3763647, 6272745, 18818235]

約数ペア:

[(1, 18818235), (3, 6272745), (5, 3763647), (9, 2090915), (15, 1254549), (17, 1106955), (45, 418183), (51, 368985), (85, 221391), (153, 122995), (255, 73797), (289, 65115), (765, 24599), (867, 21705), (1445, 13023), (1447, 13005), (2601, 7235), (4335, 4341)]