19818675

素因数分解:

$3^4\times 5^2\times {\mathrm{9787}}^1$

素因数の和:9809

約数の個数: 30

約数和(自身を含む): 36714788

約数和(自身を除く): 16896113

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 9787, 29361, 48935, 88083, 146805, 244675, 264249, 440415, 734025, 792747, 1321245, 2202075, 3963735, 6606225, 19818675]

約数ペア:

[(1, 19818675), (3, 6606225), (5, 3963735), (9, 2202075), (15, 1321245), (25, 792747), (27, 734025), (45, 440415), (75, 264249), (81, 244675), (135, 146805), (225, 88083), (405, 48935), (675, 29361), (2025, 9787)]