20765936

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{823}}^1$

素因数の和:933

約数の個数: 40

約数和(自身を含む): 42913920

約数和(自身を除く): 22147984

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 83, 152, 166, 304, 332, 664, 823, 1328, 1577, 1646, 3154, 3292, 6308, 6584, 12616, 13168, 15637, 25232, 31274, 62548, 68309, 125096, 136618, 250192, 273236, 546472, 1092944, 1297871, 2595742, 5191484, 10382968, 20765936]

約数ペア:

[(1, 20765936), (2, 10382968), (4, 5191484), (8, 2595742), (16, 1297871), (19, 1092944), (38, 546472), (76, 273236), (83, 250192), (152, 136618), (166, 125096), (304, 68309), (332, 62548), (664, 31274), (823, 25232), (1328, 15637), (1577, 13168), (1646, 12616), (3154, 6584), (3292, 6308)]