18709921736

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{1487}}^1\times {\mathrm{142981}}^1$

素因数の和:144485

約数の個数: 32

約数和(自身を含む): 38296298880

約数和(自身を除く): 19586377144

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 1487, 2974, 5948, 11896, 16357, 32714, 65428, 130856, 142981, 285962, 571924, 1143848, 1572791, 3145582, 6291164, 12582328, 212612747, 425225494, 850450988, 1700901976, 2338740217, 4677480434, 9354960868, 18709921736]

約数ペア:

[(1, 18709921736), (2, 9354960868), (4, 4677480434), (8, 2338740217), (11, 1700901976), (22, 850450988), (44, 425225494), (88, 212612747), (1487, 12582328), (2974, 6291164), (5948, 3145582), (11896, 1572791), (16357, 1143848), (32714, 571924), (65428, 285962), (130856, 142981)]