21092320

素因数分解:

$2^5\times 5^1\times {\mathrm{241}}^1\times {\mathrm{547}}^1$

素因数の和:803

約数の個数: 48

約数和(自身を含む): 50128848

約数和(自身を除く): 29036528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 241, 482, 547, 964, 1094, 1205, 1928, 2188, 2410, 2735, 3856, 4376, 4820, 5470, 7712, 8752, 9640, 10940, 17504, 19280, 21880, 38560, 43760, 87520, 131827, 263654, 527308, 659135, 1054616, 1318270, 2109232, 2636540, 4218464, 5273080, 10546160, 21092320]

約数ペア:

[(1, 21092320), (2, 10546160), (4, 5273080), (5, 4218464), (8, 2636540), (10, 2109232), (16, 1318270), (20, 1054616), (32, 659135), (40, 527308), (80, 263654), (160, 131827), (241, 87520), (482, 43760), (547, 38560), (964, 21880), (1094, 19280), (1205, 17504), (1928, 10940), (2188, 9640), (2410, 8752), (2735, 7712), (3856, 5470), (4376, 4820)]