19161918

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1303}}^1$

素因数の和:1373

約数の個数: 48

約数和(自身を含む): 44753280

約数和(自身を除く): 25591362

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 43, 57, 86, 114, 129, 171, 258, 342, 387, 774, 817, 1303, 1634, 2451, 2606, 3909, 4902, 7353, 7818, 11727, 14706, 23454, 24757, 49514, 56029, 74271, 112058, 148542, 168087, 222813, 336174, 445626, 504261, 1008522, 1064551, 2129102, 3193653, 6387306, 9580959, 19161918]

約数ペア:

[(1, 19161918), (2, 9580959), (3, 6387306), (6, 3193653), (9, 2129102), (18, 1064551), (19, 1008522), (38, 504261), (43, 445626), (57, 336174), (86, 222813), (114, 168087), (129, 148542), (171, 112058), (258, 74271), (342, 56029), (387, 49514), (774, 24757), (817, 23454), (1303, 14706), (1634, 11727), (2451, 7818), (2606, 7353), (3909, 4902)]