21135360

素因数分解:

$2^{15}\times 3^1\times 5^1\times {\mathrm{43}}^1$

素因数の和:81

約数の個数: 128

約数和(自身を含む): 69204960

約数和(自身を除く): 48069600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 43, 48, 60, 64, 80, 86, 96, 120, 128, 129, 160, 172, 192, 215, 240, 256, 258, 320, 344, 384, 430, 480, 512, 516, 640, 645, 688, 768, 860, 960, 1024, 1032, 1280, 1290, 1376, 1536, 1720, 1920, 2048, 2064, 2560, 2580, 2752, 3072, 3440, 3840, 4096, 4128, 5120, 5160, 5504, 6144, 6880, 7680, 8192, 8256, 10240, 10320, 11008, 12288, 13760, 15360, 16384, 16512, 20480, 20640, 22016, 24576, 27520, 30720, 32768, 33024, 40960, 41280, 44032, 49152, 55040, 61440, 66048, 81920, 82560, 88064, 98304, 110080, 122880, 132096, 163840, 165120, 176128, 220160, 245760, 264192, 330240, 352256, 440320, 491520, 528384, 660480, 704512, 880640, 1056768, 1320960, 1409024, 1761280, 2113536, 2641920, 3522560, 4227072, 5283840, 7045120, 10567680, 21135360]

約数ペア:

[(1, 21135360), (2, 10567680), (3, 7045120), (4, 5283840), (5, 4227072), (6, 3522560), (8, 2641920), (10, 2113536), (12, 1761280), (15, 1409024), (16, 1320960), (20, 1056768), (24, 880640), (30, 704512), (32, 660480), (40, 528384), (43, 491520), (48, 440320), (60, 352256), (64, 330240), (80, 264192), (86, 245760), (96, 220160), (120, 176128), (128, 165120), (129, 163840), (160, 132096), (172, 122880), (192, 110080), (215, 98304), (240, 88064), (256, 82560), (258, 81920), (320, 66048), (344, 61440), (384, 55040), (430, 49152), (480, 44032), (512, 41280), (516, 40960), (640, 33024), (645, 32768), (688, 30720), (768, 27520), (860, 24576), (960, 22016), (1024, 20640), (1032, 20480), (1280, 16512), (1290, 16384), (1376, 15360), (1536, 13760), (1720, 12288), (1920, 11008), (2048, 10320), (2064, 10240), (2560, 8256), (2580, 8192), (2752, 7680), (3072, 6880), (3440, 6144), (3840, 5504), (4096, 5160), (4128, 5120)]