18949275

素因数分解:

$3^3\times 5^2\times {\mathrm{67}}^1\times {\mathrm{419}}^1$

素因数の和:505

約数の個数: 48

約数和(自身を含む): 35414400

約数和(自身を除く): 16465125

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 67, 75, 135, 201, 225, 335, 419, 603, 675, 1005, 1257, 1675, 1809, 2095, 3015, 3771, 5025, 6285, 9045, 10475, 11313, 15075, 18855, 28073, 31425, 45225, 56565, 84219, 94275, 140365, 252657, 282825, 421095, 701825, 757971, 1263285, 2105475, 3789855, 6316425, 18949275]

約数ペア:

[(1, 18949275), (3, 6316425), (5, 3789855), (9, 2105475), (15, 1263285), (25, 757971), (27, 701825), (45, 421095), (67, 282825), (75, 252657), (135, 140365), (201, 94275), (225, 84219), (335, 56565), (419, 45225), (603, 31425), (675, 28073), (1005, 18855), (1257, 15075), (1675, 11313), (1809, 10475), (2095, 9045), (3015, 6285), (3771, 5025)]