20219888

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2371}}^1$

素因数の和:2433

約数の個数: 40

約数和(自身を含む): 43236816

約数和(自身を除く): 23016928

約数列:

[1, 2, 4, 8, 13, 16, 26, 41, 52, 82, 104, 164, 208, 328, 533, 656, 1066, 2132, 2371, 4264, 4742, 8528, 9484, 18968, 30823, 37936, 61646, 97211, 123292, 194422, 246584, 388844, 493168, 777688, 1263743, 1555376, 2527486, 5054972, 10109944, 20219888]

約数ペア:

[(1, 20219888), (2, 10109944), (4, 5054972), (8, 2527486), (13, 1555376), (16, 1263743), (26, 777688), (41, 493168), (52, 388844), (82, 246584), (104, 194422), (164, 123292), (208, 97211), (328, 61646), (533, 37936), (656, 30823), (1066, 18968), (2132, 9484), (2371, 8528), (4264, 4742)]