81537057

素因数分解:

$3^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1$

素因数の和:267

約数の個数: 64

約数和(自身を含む): 144138240

約数和(自身を除く): 62601183

約数列:

[1, 3, 7, 9, 21, 27, 47, 63, 67, 137, 141, 189, 201, 329, 411, 423, 469, 603, 959, 987, 1233, 1269, 1407, 1809, 2877, 2961, 3149, 3699, 4221, 6439, 8631, 8883, 9179, 9447, 12663, 19317, 22043, 25893, 27537, 28341, 45073, 57951, 64253, 66129, 82611, 85023, 135219, 173853, 192759, 198387, 247833, 405657, 431413, 578277, 595161, 1216971, 1294239, 1734831, 3019891, 3882717, 9059673, 11648151, 27179019, 81537057]

約数ペア:

[(1, 81537057), (3, 27179019), (7, 11648151), (9, 9059673), (21, 3882717), (27, 3019891), (47, 1734831), (63, 1294239), (67, 1216971), (137, 595161), (141, 578277), (189, 431413), (201, 405657), (329, 247833), (411, 198387), (423, 192759), (469, 173853), (603, 135219), (959, 85023), (987, 82611), (1233, 66129), (1269, 64253), (1407, 57951), (1809, 45073), (2877, 28341), (2961, 27537), (3149, 25893), (3699, 22043), (4221, 19317), (6439, 12663), (8631, 9447), (8883, 9179)]