207957519

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{263}}^1$

素因数の和:457

約数の個数: 72

約数和(自身を含む): 384988032

約数和(自身を除く): 177030513

約数列:

[1, 3, 7, 9, 11, 21, 33, 49, 63, 77, 99, 147, 163, 231, 263, 441, 489, 539, 693, 789, 1141, 1467, 1617, 1793, 1841, 2367, 2893, 3423, 4851, 5379, 5523, 7987, 8679, 10269, 12551, 12887, 16137, 16569, 20251, 23961, 26037, 37653, 38661, 42869, 60753, 71883, 87857, 112959, 115983, 128607, 141757, 182259, 263571, 300083, 385821, 425271, 471559, 790713, 900249, 1275813, 1414677, 2100581, 2700747, 3300913, 4244031, 6301743, 9902739, 18905229, 23106391, 29708217, 69319173, 207957519]

約数ペア:

[(1, 207957519), (3, 69319173), (7, 29708217), (9, 23106391), (11, 18905229), (21, 9902739), (33, 6301743), (49, 4244031), (63, 3300913), (77, 2700747), (99, 2100581), (147, 1414677), (163, 1275813), (231, 900249), (263, 790713), (441, 471559), (489, 425271), (539, 385821), (693, 300083), (789, 263571), (1141, 182259), (1467, 141757), (1617, 128607), (1793, 115983), (1841, 112959), (2367, 87857), (2893, 71883), (3423, 60753), (4851, 42869), (5379, 38661), (5523, 37653), (7987, 26037), (8679, 23961), (10269, 20251), (12551, 16569), (12887, 16137)]