21806976

素因数分解:

$2^7\times 3^1\times {\mathrm{109}}^1\times {\mathrm{521}}^1$

素因数の和:647

約数の個数: 64

約数和(自身を含む): 58568400

約数和(自身を除く): 36761424

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 109, 128, 192, 218, 327, 384, 436, 521, 654, 872, 1042, 1308, 1563, 1744, 2084, 2616, 3126, 3488, 4168, 5232, 6252, 6976, 8336, 10464, 12504, 13952, 16672, 20928, 25008, 33344, 41856, 50016, 56789, 66688, 100032, 113578, 170367, 200064, 227156, 340734, 454312, 681468, 908624, 1362936, 1817248, 2725872, 3634496, 5451744, 7268992, 10903488, 21806976]

約数ペア:

[(1, 21806976), (2, 10903488), (3, 7268992), (4, 5451744), (6, 3634496), (8, 2725872), (12, 1817248), (16, 1362936), (24, 908624), (32, 681468), (48, 454312), (64, 340734), (96, 227156), (109, 200064), (128, 170367), (192, 113578), (218, 100032), (327, 66688), (384, 56789), (436, 50016), (521, 41856), (654, 33344), (872, 25008), (1042, 20928), (1308, 16672), (1563, 13952), (1744, 12504), (2084, 10464), (2616, 8336), (3126, 6976), (3488, 6252), (4168, 5232)]