81670113

素因数分解:

$3^5\times 7^2\times {\mathrm{19}}^3$

素因数の和:86

約数の個数: 72

約数和(自身を含む): 150215520

約数和(自身を除く): 68545407

約数列:

[1, 3, 7, 9, 19, 21, 27, 49, 57, 63, 81, 133, 147, 171, 189, 243, 361, 399, 441, 513, 567, 931, 1083, 1197, 1323, 1539, 1701, 2527, 2793, 3249, 3591, 3969, 4617, 6859, 7581, 8379, 9747, 10773, 11907, 17689, 20577, 22743, 25137, 29241, 32319, 48013, 53067, 61731, 68229, 75411, 87723, 144039, 159201, 185193, 204687, 226233, 336091, 432117, 477603, 555579, 614061, 1008273, 1296351, 1432809, 1666737, 3024819, 3889053, 4298427, 9074457, 11667159, 27223371, 81670113]

約数ペア:

[(1, 81670113), (3, 27223371), (7, 11667159), (9, 9074457), (19, 4298427), (21, 3889053), (27, 3024819), (49, 1666737), (57, 1432809), (63, 1296351), (81, 1008273), (133, 614061), (147, 555579), (171, 477603), (189, 432117), (243, 336091), (361, 226233), (399, 204687), (441, 185193), (513, 159201), (567, 144039), (931, 87723), (1083, 75411), (1197, 68229), (1323, 61731), (1539, 53067), (1701, 48013), (2527, 32319), (2793, 29241), (3249, 25137), (3591, 22743), (3969, 20577), (4617, 17689), (6859, 11907), (7581, 10773), (8379, 9747)]