1945215

素因数分解:

$3^5\times 5^1\times {\mathrm{1601}}^1$

素因数の和:1621

約数の個数: 24

約数和(自身を含む): 3498768

約数和(自身を除く): 1553553

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 1601, 4803, 8005, 14409, 24015, 43227, 72045, 129681, 216135, 389043, 648405, 1945215]

約数ペア:

[(1, 1945215), (3, 648405), (5, 389043), (9, 216135), (15, 129681), (27, 72045), (45, 43227), (81, 24015), (135, 14409), (243, 8005), (405, 4803), (1215, 1601)]