18836847

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{503}}^1$

素因数の和:604

約数の個数: 32

約数和(自身を含む): 29836800

約数和(自身を除く): 10999953

約数列:

[1, 3, 9, 19, 27, 57, 73, 171, 219, 503, 513, 657, 1387, 1509, 1971, 4161, 4527, 9557, 12483, 13581, 28671, 36719, 37449, 86013, 110157, 258039, 330471, 697661, 991413, 2092983, 6278949, 18836847]

約数ペア:

[(1, 18836847), (3, 6278949), (9, 2092983), (19, 991413), (27, 697661), (57, 330471), (73, 258039), (171, 110157), (219, 86013), (503, 37449), (513, 36719), (657, 28671), (1387, 13581), (1509, 12483), (1971, 9557), (4161, 4527)]