87939999

素因数分解:

$3^6\times 7^1\times {\mathrm{19}}^1\times {\mathrm{907}}^1$

素因数の和:951

約数の個数: 56

約数和(自身を含む): 158791040

約数和(自身を除く): 70851041

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 81, 133, 171, 189, 243, 399, 513, 567, 729, 907, 1197, 1539, 1701, 2721, 3591, 4617, 5103, 6349, 8163, 10773, 13851, 17233, 19047, 24489, 32319, 51699, 57141, 73467, 96957, 120631, 155097, 171423, 220401, 361893, 465291, 514269, 661203, 1085679, 1395873, 1542807, 3257037, 4187619, 4628421, 9771111, 12562857, 29313333, 87939999]

約数ペア:

[(1, 87939999), (3, 29313333), (7, 12562857), (9, 9771111), (19, 4628421), (21, 4187619), (27, 3257037), (57, 1542807), (63, 1395873), (81, 1085679), (133, 661203), (171, 514269), (189, 465291), (243, 361893), (399, 220401), (513, 171423), (567, 155097), (729, 120631), (907, 96957), (1197, 73467), (1539, 57141), (1701, 51699), (2721, 32319), (3591, 24489), (4617, 19047), (5103, 17233), (6349, 13851), (8163, 10773)]