21656556315

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{286633}}^1$

素因数の和:286740

約数の個数: 48

約数和(自身を含む): 39706834752

約数和(自身を除く): 18050278437

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 73, 115, 207, 219, 345, 365, 657, 1035, 1095, 1679, 3285, 5037, 8395, 15111, 25185, 75555, 286633, 859899, 1433165, 2579697, 4299495, 6592559, 12898485, 19777677, 20924209, 32962795, 59333031, 62772627, 98888385, 104621045, 188317881, 296665155, 313863135, 481256807, 941589405, 1443770421, 2406284035, 4331311263, 7218852105, 21656556315]

約数ペア:

[(1, 21656556315), (3, 7218852105), (5, 4331311263), (9, 2406284035), (15, 1443770421), (23, 941589405), (45, 481256807), (69, 313863135), (73, 296665155), (115, 188317881), (207, 104621045), (219, 98888385), (345, 62772627), (365, 59333031), (657, 32962795), (1035, 20924209), (1095, 19777677), (1679, 12898485), (3285, 6592559), (5037, 4299495), (8395, 2579697), (15111, 1433165), (25185, 859899), (75555, 286633)]