17919174987

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{245411}}^1$

素因数の和:245504

約数の個数: 48

約数和(自身を含む): 31648331520

約数和(自身を除く): 13729156533

約数列:

[1, 3, 7, 9, 19, 21, 57, 61, 63, 133, 171, 183, 399, 427, 549, 1159, 1197, 1281, 3477, 3843, 8113, 10431, 24339, 73017, 245411, 736233, 1717877, 2208699, 4662809, 5153631, 13988427, 14970071, 15460893, 32639663, 41965281, 44910213, 97918989, 104790497, 134730639, 284431349, 293756967, 314371491, 853294047, 943114473, 1991019443, 2559882141, 5973058329, 17919174987]

約数ペア:

[(1, 17919174987), (3, 5973058329), (7, 2559882141), (9, 1991019443), (19, 943114473), (21, 853294047), (57, 314371491), (61, 293756967), (63, 284431349), (133, 134730639), (171, 104790497), (183, 97918989), (399, 44910213), (427, 41965281), (549, 32639663), (1159, 15460893), (1197, 14970071), (1281, 13988427), (3477, 5153631), (3843, 4662809), (8113, 2208699), (10431, 1717877), (24339, 736233), (73017, 245411)]