28964721

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{6961}}^1$

素因数の和:7056

約数の個数: 16

約数和(自身を含む): 41215040

約数和(自身を除く): 12250319

約数列:

[1, 3, 19, 57, 73, 219, 1387, 4161, 6961, 20883, 132259, 396777, 508153, 1524459, 9654907, 28964721]

約数ペア:

[(1, 28964721), (3, 9654907), (19, 1524459), (57, 508153), (73, 396777), (219, 132259), (1387, 20883), (4161, 6961)]