20459544

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{631}}^1$

素因数の和:840

約数の個数: 64

約数和(自身を含む): 58851840

約数和(自身を除く): 38392296

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 193, 386, 579, 631, 772, 1158, 1262, 1351, 1544, 1893, 2316, 2524, 2702, 3786, 4053, 4417, 4632, 5048, 5404, 7572, 8106, 8834, 10808, 13251, 15144, 16212, 17668, 26502, 32424, 35336, 53004, 106008, 121783, 243566, 365349, 487132, 730698, 852481, 974264, 1461396, 1704962, 2557443, 2922792, 3409924, 5114886, 6819848, 10229772, 20459544]

約数ペア:

[(1, 20459544), (2, 10229772), (3, 6819848), (4, 5114886), (6, 3409924), (7, 2922792), (8, 2557443), (12, 1704962), (14, 1461396), (21, 974264), (24, 852481), (28, 730698), (42, 487132), (56, 365349), (84, 243566), (168, 121783), (193, 106008), (386, 53004), (579, 35336), (631, 32424), (772, 26502), (1158, 17668), (1262, 16212), (1351, 15144), (1544, 13251), (1893, 10808), (2316, 8834), (2524, 8106), (2702, 7572), (3786, 5404), (4053, 5048), (4417, 4632)]