21149775

素因数分解:

$3^3\times 5^2\times {\mathrm{31333}}^1$

素因数の和:31352

約数の個数: 24

約数和(自身を含む): 38854160

約数和(自身を除く): 17704385

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675, 31333, 93999, 156665, 281997, 469995, 783325, 845991, 1409985, 2349975, 4229955, 7049925, 21149775]

約数ペア:

[(1, 21149775), (3, 7049925), (5, 4229955), (9, 2349975), (15, 1409985), (25, 845991), (27, 783325), (45, 469995), (75, 281997), (135, 156665), (225, 93999), (675, 31333)]