21542835

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{1523}}^1$

素因数の和:1595

約数の個数: 32

約数和(自身を含む): 36868608

約数和(自身を除く): 15325773

約数列:

[1, 3, 5, 15, 23, 41, 69, 115, 123, 205, 345, 615, 943, 1523, 2829, 4569, 4715, 7615, 14145, 22845, 35029, 62443, 105087, 175145, 187329, 312215, 525435, 936645, 1436189, 4308567, 7180945, 21542835]

約数ペア:

[(1, 21542835), (3, 7180945), (5, 4308567), (15, 1436189), (23, 936645), (41, 525435), (69, 312215), (115, 187329), (123, 175145), (205, 105087), (345, 62443), (615, 35029), (943, 22845), (1523, 14145), (2829, 7615), (4569, 4715)]