21311547

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{4231}}^1$

素因数の和:4330

約数の個数: 16

約数和(自身を含む): 30064128

約数和(自身を除く): 8752581

約数列:

[1, 3, 23, 69, 73, 219, 1679, 4231, 5037, 12693, 97313, 291939, 308863, 926589, 7103849, 21311547]

約数ペア:

[(1, 21311547), (3, 7103849), (23, 926589), (69, 308863), (73, 291939), (219, 97313), (1679, 12693), (4231, 5037)]