2778345

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{2129}}^1$

素因数の和:2169

約数の個数: 24

約数和(自身を含む): 4984200

約数和(自身を除く): 2205855

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 2129, 6387, 10645, 19161, 31935, 61741, 95805, 185223, 308705, 555669, 926115, 2778345]

約数ペア:

[(1, 2778345), (3, 926115), (5, 555669), (9, 308705), (15, 185223), (29, 95805), (45, 61741), (87, 31935), (145, 19161), (261, 10645), (435, 6387), (1305, 2129)]