21681936

素因数分解:

$2^4\times 3^2\times {\mathrm{17}}^2\times {\mathrm{521}}^1$

素因数の和:569

約数の個数: 90

約数和(自身を含む): 64582362

約数和(自身を除く): 42900426

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 34, 36, 48, 51, 68, 72, 102, 136, 144, 153, 204, 272, 289, 306, 408, 521, 578, 612, 816, 867, 1042, 1156, 1224, 1563, 1734, 2084, 2312, 2448, 2601, 3126, 3468, 4168, 4624, 4689, 5202, 6252, 6936, 8336, 8857, 9378, 10404, 12504, 13872, 17714, 18756, 20808, 25008, 26571, 35428, 37512, 41616, 53142, 70856, 75024, 79713, 106284, 141712, 150569, 159426, 212568, 301138, 318852, 425136, 451707, 602276, 637704, 903414, 1204552, 1275408, 1355121, 1806828, 2409104, 2710242, 3613656, 5420484, 7227312, 10840968, 21681936]

約数ペア:

[(1, 21681936), (2, 10840968), (3, 7227312), (4, 5420484), (6, 3613656), (8, 2710242), (9, 2409104), (12, 1806828), (16, 1355121), (17, 1275408), (18, 1204552), (24, 903414), (34, 637704), (36, 602276), (48, 451707), (51, 425136), (68, 318852), (72, 301138), (102, 212568), (136, 159426), (144, 150569), (153, 141712), (204, 106284), (272, 79713), (289, 75024), (306, 70856), (408, 53142), (521, 41616), (578, 37512), (612, 35428), (816, 26571), (867, 25008), (1042, 20808), (1156, 18756), (1224, 17714), (1563, 13872), (1734, 12504), (2084, 10404), (2312, 9378), (2448, 8857), (2601, 8336), (3126, 6936), (3468, 6252), (4168, 5202), (4624, 4689)]