31987982

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{293}}^1$

素因数の和:357

約数の個数: 48

約数和(自身を含む): 58106160

約数和(自身を除く): 26118178

約数列:

[1, 2, 13, 17, 19, 26, 34, 38, 169, 221, 247, 293, 323, 338, 442, 494, 586, 646, 2873, 3211, 3809, 4199, 4981, 5567, 5746, 6422, 7618, 8398, 9962, 11134, 49517, 54587, 64753, 72371, 94639, 99034, 109174, 129506, 144742, 189278, 841789, 940823, 1230307, 1683578, 1881646, 2460614, 15993991, 31987982]

約数ペア:

[(1, 31987982), (2, 15993991), (13, 2460614), (17, 1881646), (19, 1683578), (26, 1230307), (34, 940823), (38, 841789), (169, 189278), (221, 144742), (247, 129506), (293, 109174), (323, 99034), (338, 94639), (442, 72371), (494, 64753), (586, 54587), (646, 49517), (2873, 11134), (3211, 9962), (3809, 8398), (4199, 7618), (4981, 6422), (5567, 5746)]