18928215

素因数分解:

$3^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{941}}^1$

素因数の和:1104

約数の個数: 32

約数和(自身を含む): 33912000

約数和(自身を除く): 14983785

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 149, 447, 745, 941, 1341, 2235, 2823, 4023, 4705, 6705, 8469, 14115, 20115, 25407, 42345, 127035, 140209, 420627, 701045, 1261881, 2103135, 3785643, 6309405, 18928215]

約数ペア:

[(1, 18928215), (3, 6309405), (5, 3785643), (9, 2103135), (15, 1261881), (27, 701045), (45, 420627), (135, 140209), (149, 127035), (447, 42345), (745, 25407), (941, 20115), (1341, 14115), (2235, 8469), (2823, 6705), (4023, 4705)]