31208723

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:124

約数の個数: 48

約数和(自身を含む): 42725376

約数和(自身を除く): 11516653

約数列:

[1, 7, 13, 23, 31, 37, 91, 161, 169, 217, 259, 299, 403, 481, 713, 851, 1147, 1183, 2093, 2821, 3367, 3887, 4991, 5239, 5957, 6253, 8029, 9269, 11063, 14911, 26381, 27209, 36673, 43771, 64883, 77441, 104377, 120497, 143819, 184667, 193843, 342953, 843479, 1006733, 1356901, 2400671, 4458389, 31208723]

約数ペア:

[(1, 31208723), (7, 4458389), (13, 2400671), (23, 1356901), (31, 1006733), (37, 843479), (91, 342953), (161, 193843), (169, 184667), (217, 143819), (259, 120497), (299, 104377), (403, 77441), (481, 64883), (713, 43771), (851, 36673), (1147, 27209), (1183, 26381), (2093, 14911), (2821, 11063), (3367, 9269), (3887, 8029), (4991, 6253), (5239, 5957)]