207642987

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{509}}^1\times {\mathrm{521}}^1$

素因数の和:1068

約数の個数: 32

約数和(自身を含む): 319464000

約数和(自身を除く): 111821013

約数列:

[1, 3, 9, 27, 29, 87, 261, 509, 521, 783, 1527, 1563, 4581, 4689, 13743, 14067, 14761, 15109, 44283, 45327, 132849, 135981, 265189, 398547, 407943, 795567, 2386701, 7160103, 7690481, 23071443, 69214329, 207642987]

約数ペア:

[(1, 207642987), (3, 69214329), (9, 23071443), (27, 7690481), (29, 7160103), (87, 2386701), (261, 795567), (509, 407943), (521, 398547), (783, 265189), (1527, 135981), (1563, 132849), (4581, 45327), (4689, 44283), (13743, 15109), (14067, 14761)]