21102615

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{20389}}^1$

素因数の和:20423

約数の個数: 24

約数和(自身を含む): 38170080

約数和(自身を除く): 17067465

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 20389, 61167, 101945, 183501, 305835, 468947, 917505, 1406841, 2344735, 4220523, 7034205, 21102615]

約数ペア:

[(1, 21102615), (3, 7034205), (5, 4220523), (9, 2344735), (15, 1406841), (23, 917505), (45, 468947), (69, 305835), (115, 183501), (207, 101945), (345, 61167), (1035, 20389)]