21782265

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{3323}}^1$

素因数の和:3373

約数の個数: 32

約数和(自身を含む): 38292480

約数和(自身を除く): 16510215

約数列:

[1, 3, 5, 15, 19, 23, 57, 69, 95, 115, 285, 345, 437, 1311, 2185, 3323, 6555, 9969, 16615, 49845, 63137, 76429, 189411, 229287, 315685, 382145, 947055, 1146435, 1452151, 4356453, 7260755, 21782265]

約数ペア:

[(1, 21782265), (3, 7260755), (5, 4356453), (15, 1452151), (19, 1146435), (23, 947055), (57, 382145), (69, 315685), (95, 229287), (115, 189411), (285, 76429), (345, 63137), (437, 49845), (1311, 16615), (2185, 9969), (3323, 6555)]