19990218

素因数分解:

$2^1\times 3^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1\times {\mathrm{293}}^1$

素因数の和:518

約数の個数: 32

約数和(自身を含む): 40896576

約数和(自身を除く): 20906358

約数列:

[1, 2, 3, 6, 83, 137, 166, 249, 274, 293, 411, 498, 586, 822, 879, 1758, 11371, 22742, 24319, 34113, 40141, 48638, 68226, 72957, 80282, 120423, 145914, 240846, 3331703, 6663406, 9995109, 19990218]

約数ペア:

[(1, 19990218), (2, 9995109), (3, 6663406), (6, 3331703), (83, 240846), (137, 145914), (166, 120423), (249, 80282), (274, 72957), (293, 68226), (411, 48638), (498, 40141), (586, 34113), (822, 24319), (879, 22742), (1758, 11371)]