18644985

素因数分解:

$3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2423}}^1$

素因数の和:2459

約数の個数: 40

約数和(自身を含む): 35196480

約数和(自身を除く): 16551495

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 81, 95, 135, 171, 285, 405, 513, 855, 1539, 2423, 2565, 7269, 7695, 12115, 21807, 36345, 46037, 65421, 109035, 138111, 196263, 230185, 327105, 414333, 690555, 981315, 1242999, 2071665, 3728997, 6214995, 18644985]

約数ペア:

[(1, 18644985), (3, 6214995), (5, 3728997), (9, 2071665), (15, 1242999), (19, 981315), (27, 690555), (45, 414333), (57, 327105), (81, 230185), (95, 196263), (135, 138111), (171, 109035), (285, 65421), (405, 46037), (513, 36345), (855, 21807), (1539, 12115), (2423, 7695), (2565, 7269)]