27987705

素因数分解:

$3^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{1879}}^1$

素因数の和:2221

約数の個数: 24

約数和(自身を含む): 48684480

約数和(自身を除く): 20696775

約数列:

[1, 3, 5, 9, 15, 45, 331, 993, 1655, 1879, 2979, 4965, 5637, 9395, 14895, 16911, 28185, 84555, 621949, 1865847, 3109745, 5597541, 9329235, 27987705]

約数ペア:

[(1, 27987705), (3, 9329235), (5, 5597541), (9, 3109745), (15, 1865847), (45, 621949), (331, 84555), (993, 28185), (1655, 16911), (1879, 14895), (2979, 9395), (4965, 5637)]