81575787

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1\times {\mathrm{157}}^1$

素因数の和:379

約数の個数: 32

約数和(自身を含む): 116813824

約数和(自身を除く): 35238037

約数列:

[1, 3, 31, 37, 93, 111, 151, 157, 453, 471, 1147, 3441, 4681, 4867, 5587, 5809, 14043, 14601, 16761, 17427, 23707, 71121, 173197, 180079, 519591, 540237, 734917, 877159, 2204751, 2631477, 27191929, 81575787]

約数ペア:

[(1, 81575787), (3, 27191929), (31, 2631477), (37, 2204751), (93, 877159), (111, 734917), (151, 540237), (157, 519591), (453, 180079), (471, 173197), (1147, 71121), (3441, 23707), (4681, 17427), (4867, 16761), (5587, 14601), (5809, 14043)]