129185217

素因数分解:

$3^2\times 7^2\times {\mathrm{457}}^1\times {\mathrm{641}}^1$

素因数の和:1118

約数の個数: 36

約数和(自身を含む): 217880676

約数和(自身を除く): 88695459

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 457, 641, 1371, 1923, 3199, 4113, 4487, 5769, 9597, 13461, 22393, 28791, 31409, 40383, 67179, 94227, 201537, 282681, 292937, 878811, 2050559, 2636433, 6151677, 14353913, 18455031, 43061739, 129185217]

約数ペア:

[(1, 129185217), (3, 43061739), (7, 18455031), (9, 14353913), (21, 6151677), (49, 2636433), (63, 2050559), (147, 878811), (441, 292937), (457, 282681), (641, 201537), (1371, 94227), (1923, 67179), (3199, 40383), (4113, 31409), (4487, 28791), (5769, 22393), (9597, 13461)]