261657981

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{1151}}^1$

素因数の和:1266

約数の個数: 48

約数和(自身を含む): 427714560

約数和(自身を除く): 166056579

約数列:

[1, 3, 9, 13, 29, 39, 67, 87, 117, 201, 261, 377, 603, 871, 1131, 1151, 1943, 2613, 3393, 3453, 5829, 7839, 10359, 14963, 17487, 25259, 33379, 44889, 75777, 77117, 100137, 134667, 227331, 231351, 300411, 433927, 694053, 1002521, 1301781, 2236393, 3007563, 3905343, 6709179, 9022689, 20127537, 29073109, 87219327, 261657981]

約数ペア:

[(1, 261657981), (3, 87219327), (9, 29073109), (13, 20127537), (29, 9022689), (39, 6709179), (67, 3905343), (87, 3007563), (117, 2236393), (201, 1301781), (261, 1002521), (377, 694053), (603, 433927), (871, 300411), (1131, 231351), (1151, 227331), (1943, 134667), (2613, 100137), (3393, 77117), (3453, 75777), (5829, 44889), (7839, 33379), (10359, 25259), (14963, 17487)]