51676821

素因数分解:

$3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1$

素因数の和:211

約数の個数: 72

約数和(自身を含む): 94272984

約数和(自身を除く): 42596163

約数列:

[1, 3, 7, 9, 17, 21, 49, 51, 61, 63, 113, 119, 147, 153, 183, 339, 357, 427, 441, 549, 791, 833, 1017, 1037, 1071, 1281, 1921, 2373, 2499, 2989, 3111, 3843, 5537, 5763, 6893, 7119, 7259, 7497, 8967, 9333, 13447, 16611, 17289, 20679, 21777, 26901, 40341, 48251, 49833, 50813, 62037, 65331, 94129, 117181, 121023, 144753, 152439, 282387, 337757, 351543, 434259, 457317, 820267, 847161, 1013271, 1054629, 2460801, 3039813, 5741869, 7382403, 17225607, 51676821]

約数ペア:

[(1, 51676821), (3, 17225607), (7, 7382403), (9, 5741869), (17, 3039813), (21, 2460801), (49, 1054629), (51, 1013271), (61, 847161), (63, 820267), (113, 457317), (119, 434259), (147, 351543), (153, 337757), (183, 282387), (339, 152439), (357, 144753), (427, 121023), (441, 117181), (549, 94129), (791, 65331), (833, 62037), (1017, 50813), (1037, 49833), (1071, 48251), (1281, 40341), (1921, 26901), (2373, 21777), (2499, 20679), (2989, 17289), (3111, 16611), (3843, 13447), (5537, 9333), (5763, 8967), (6893, 7497), (7119, 7259)]