51235821

素因数分解:

$3^5\times 7^2\times {\mathrm{13}}^1\times {\mathrm{331}}^1$

素因数の和:373

約数の個数: 72

約数和(自身を含む): 96436704

約数和(自身を除く): 45200883

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 49, 63, 81, 91, 117, 147, 189, 243, 273, 331, 351, 441, 567, 637, 819, 993, 1053, 1323, 1701, 1911, 2317, 2457, 2979, 3159, 3969, 4303, 5733, 6951, 7371, 8937, 11907, 12909, 16219, 17199, 20853, 22113, 26811, 30121, 38727, 48657, 51597, 62559, 80433, 90363, 116181, 145971, 154791, 187677, 210847, 271089, 348543, 437913, 563031, 632541, 813267, 1045629, 1313739, 1897623, 2439801, 3941217, 5692869, 7319403, 17078607, 51235821]

約数ペア:

[(1, 51235821), (3, 17078607), (7, 7319403), (9, 5692869), (13, 3941217), (21, 2439801), (27, 1897623), (39, 1313739), (49, 1045629), (63, 813267), (81, 632541), (91, 563031), (117, 437913), (147, 348543), (189, 271089), (243, 210847), (273, 187677), (331, 154791), (351, 145971), (441, 116181), (567, 90363), (637, 80433), (819, 62559), (993, 51597), (1053, 48657), (1323, 38727), (1701, 30121), (1911, 26811), (2317, 22113), (2457, 20853), (2979, 17199), (3159, 16219), (3969, 12909), (4303, 11907), (5733, 8937), (6951, 7371)]