20380995

素因数分解:

$3^2\times 5^1\times {\mathrm{313}}^1\times {\mathrm{1447}}^1$

素因数の和:1771

約数の個数: 24

約数和(自身を含む): 35464416

約数和(自身を除く): 15083421

約数列:

[1, 3, 5, 9, 15, 45, 313, 939, 1447, 1565, 2817, 4341, 4695, 7235, 13023, 14085, 21705, 65115, 452911, 1358733, 2264555, 4076199, 6793665, 20380995]

約数ペア:

[(1, 20380995), (3, 6793665), (5, 4076199), (9, 2264555), (15, 1358733), (45, 452911), (313, 65115), (939, 21705), (1447, 14085), (1565, 13023), (2817, 7235), (4341, 4695)]