19997076

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{769}}^1$

素因数の和:984

約数の個数: 48

約数和(自身を含む): 51226560

約数和(自身を除く): 31229484

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132, 197, 394, 591, 769, 788, 1182, 1538, 2167, 2307, 2364, 3076, 4334, 4614, 6501, 8459, 8668, 9228, 13002, 16918, 25377, 26004, 33836, 50754, 101508, 151493, 302986, 454479, 605972, 908958, 1666423, 1817916, 3332846, 4999269, 6665692, 9998538, 19997076]

約数ペア:

[(1, 19997076), (2, 9998538), (3, 6665692), (4, 4999269), (6, 3332846), (11, 1817916), (12, 1666423), (22, 908958), (33, 605972), (44, 454479), (66, 302986), (132, 151493), (197, 101508), (394, 50754), (591, 33836), (769, 26004), (788, 25377), (1182, 16918), (1538, 13002), (2167, 9228), (2307, 8668), (2364, 8459), (3076, 6501), (4334, 4614)]