21604995

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{8423}}^1$

素因数の和:8456

約数の個数: 32

約数和(自身を含む): 40435200

約数和(自身を除く): 18830205

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 95, 135, 171, 285, 513, 855, 2565, 8423, 25269, 42115, 75807, 126345, 160037, 227421, 379035, 480111, 800185, 1137105, 1440333, 2400555, 4320999, 7201665, 21604995]

約数ペア:

[(1, 21604995), (3, 7201665), (5, 4320999), (9, 2400555), (15, 1440333), (19, 1137105), (27, 800185), (45, 480111), (57, 379035), (95, 227421), (135, 160037), (171, 126345), (285, 75807), (513, 42115), (855, 25269), (2565, 8423)]