20924865

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{11923}}^1$

素因数の和:11950

約数の個数: 32

約数和(自身を含む): 40064640

約数和(自身を除く): 19139775

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 195, 351, 585, 1755, 11923, 35769, 59615, 107307, 154999, 178845, 321921, 464997, 536535, 774995, 1394991, 1609605, 2324985, 4184973, 6974955, 20924865]

約数ペア:

[(1, 20924865), (3, 6974955), (5, 4184973), (9, 2324985), (13, 1609605), (15, 1394991), (27, 774995), (39, 536535), (45, 464997), (65, 321921), (117, 178845), (135, 154999), (195, 107307), (351, 59615), (585, 35769), (1755, 11923)]