19404819

素因数分解:

$3^3\times 7^1\times {\mathrm{83}}^1\times {\mathrm{1237}}^1$

素因数の和:1336

約数の個数: 32

約数和(自身を含む): 33277440

約数和(自身を除く): 13872621

約数列:

[1, 3, 7, 9, 21, 27, 63, 83, 189, 249, 581, 747, 1237, 1743, 2241, 3711, 5229, 8659, 11133, 15687, 25977, 33399, 77931, 102671, 233793, 308013, 718697, 924039, 2156091, 2772117, 6468273, 19404819]

約数ペア:

[(1, 19404819), (3, 6468273), (7, 2772117), (9, 2156091), (21, 924039), (27, 718697), (63, 308013), (83, 233793), (189, 102671), (249, 77931), (581, 33399), (747, 25977), (1237, 15687), (1743, 11133), (2241, 8659), (3711, 5229)]