31772313

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:246

約数の個数: 48

約数和(自身を含む): 51480000

約数和(自身を除く): 19707687

約数列:

[1, 3, 9, 19, 29, 43, 57, 87, 129, 149, 171, 261, 387, 447, 551, 817, 1247, 1341, 1653, 2451, 2831, 3741, 4321, 4959, 6407, 7353, 8493, 11223, 12963, 19221, 23693, 25479, 38889, 57663, 71079, 82099, 121733, 185803, 213237, 246297, 365199, 557409, 738891, 1095597, 1672227, 3530257, 10590771, 31772313]

約数ペア:

[(1, 31772313), (3, 10590771), (9, 3530257), (19, 1672227), (29, 1095597), (43, 738891), (57, 557409), (87, 365199), (129, 246297), (149, 213237), (171, 185803), (261, 121733), (387, 82099), (447, 71079), (551, 57663), (817, 38889), (1247, 25479), (1341, 23693), (1653, 19221), (2451, 12963), (2831, 11223), (3741, 8493), (4321, 7353), (4959, 6407)]