16721535

素因数分解:

$3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1\times {\mathrm{137}}^1$

素因数の和:327

約数の個数: 32

約数和(自身を含む): 27555840

約数和(自身を除く): 10834305

約数列:

[1, 3, 5, 15, 79, 103, 137, 237, 309, 395, 411, 515, 685, 1185, 1545, 2055, 8137, 10823, 14111, 24411, 32469, 40685, 42333, 54115, 70555, 122055, 162345, 211665, 1114769, 3344307, 5573845, 16721535]

約数ペア:

[(1, 16721535), (3, 5573845), (5, 3344307), (15, 1114769), (79, 211665), (103, 162345), (137, 122055), (237, 70555), (309, 54115), (395, 42333), (411, 40685), (515, 32469), (685, 24411), (1185, 14111), (1545, 10823), (2055, 8137)]