19991898

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{827}}^1$

素因数の和:931

約数の個数: 48

約数和(自身を含む): 46500480

約数和(自身を除く): 26508582

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 79, 102, 153, 158, 237, 306, 474, 711, 827, 1343, 1422, 1654, 2481, 2686, 4029, 4962, 7443, 8058, 12087, 14059, 14886, 24174, 28118, 42177, 65333, 84354, 126531, 130666, 195999, 253062, 391998, 587997, 1110661, 1175994, 2221322, 3331983, 6663966, 9995949, 19991898]

約数ペア:

[(1, 19991898), (2, 9995949), (3, 6663966), (6, 3331983), (9, 2221322), (17, 1175994), (18, 1110661), (34, 587997), (51, 391998), (79, 253062), (102, 195999), (153, 130666), (158, 126531), (237, 84354), (306, 65333), (474, 42177), (711, 28118), (827, 24174), (1343, 14886), (1422, 14059), (1654, 12087), (2481, 8058), (2686, 7443), (4029, 4962)]