21078856

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{1051}}^1$

素因数の和:1189

約数の個数: 32

約数和(自身を含む): 41659200

約数和(自身を除く): 20580344

約数列:

[1, 2, 4, 8, 23, 46, 92, 109, 184, 218, 436, 872, 1051, 2102, 2507, 4204, 5014, 8408, 10028, 20056, 24173, 48346, 96692, 114559, 193384, 229118, 458236, 916472, 2634857, 5269714, 10539428, 21078856]

約数ペア:

[(1, 21078856), (2, 10539428), (4, 5269714), (8, 2634857), (23, 916472), (46, 458236), (92, 229118), (109, 193384), (184, 114559), (218, 96692), (436, 48346), (872, 24173), (1051, 20056), (2102, 10028), (2507, 8408), (4204, 5014)]