161981479

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1087}}^1$

素因数の和:1171

約数の個数: 32

約数和(自身を含む): 200540160

約数和(自身を除く): 38558681

約数列:

[1, 11, 19, 23, 31, 209, 253, 341, 437, 589, 713, 1087, 4807, 6479, 7843, 11957, 13547, 20653, 25001, 33697, 149017, 227183, 275011, 370667, 475019, 640243, 775031, 5225209, 7042673, 8525341, 14725589, 161981479]

約数ペア:

[(1, 161981479), (11, 14725589), (19, 8525341), (23, 7042673), (31, 5225209), (209, 775031), (253, 640243), (341, 475019), (437, 370667), (589, 275011), (713, 227183), (1087, 149017), (4807, 33697), (6479, 25001), (7843, 20653), (11957, 13547)]