19851075

素因数分解:

$3^4\times 5^2\times {\mathrm{9803}}^1$

素因数の和:9825

約数の個数: 30

約数和(自身を含む): 36774804

約数和(自身を除く): 16923729

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 9803, 29409, 49015, 88227, 147045, 245075, 264681, 441135, 735225, 794043, 1323405, 2205675, 3970215, 6617025, 19851075]

約数ペア:

[(1, 19851075), (3, 6617025), (5, 3970215), (9, 2205675), (15, 1323405), (25, 794043), (27, 735225), (45, 441135), (75, 264681), (81, 245075), (135, 147045), (225, 88227), (405, 49015), (675, 29409), (2025, 9803)]