81129741

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{383}}^1$

素因数の和:542

約数の個数: 48

約数和(自身を含む): 138682368

約数和(自身を除く): 57552627

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 131, 147, 231, 383, 393, 539, 917, 1149, 1441, 1617, 2681, 2751, 4213, 4323, 6419, 8043, 10087, 12639, 18767, 19257, 29491, 30261, 50173, 56301, 70609, 88473, 150519, 206437, 211827, 351211, 551903, 619311, 1053633, 1655709, 2458477, 3863321, 7375431, 11589963, 27043247, 81129741]

約数ペア:

[(1, 81129741), (3, 27043247), (7, 11589963), (11, 7375431), (21, 3863321), (33, 2458477), (49, 1655709), (77, 1053633), (131, 619311), (147, 551903), (231, 351211), (383, 211827), (393, 206437), (539, 150519), (917, 88473), (1149, 70609), (1441, 56301), (1617, 50173), (2681, 30261), (2751, 29491), (4213, 19257), (4323, 18767), (6419, 12639), (8043, 10087)]