81683147

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{397}}^1$

素因数の和:460

約数の個数: 48

約数和(自身を含む): 114337440

約数和(自身を除く): 32654293

約数列:

[1, 7, 13, 17, 19, 49, 91, 119, 133, 221, 247, 323, 397, 637, 833, 931, 1547, 1729, 2261, 2779, 4199, 5161, 6749, 7543, 10829, 12103, 15827, 19453, 29393, 36127, 47243, 52801, 87737, 98059, 128231, 205751, 252889, 330701, 369607, 614159, 686413, 897617, 1667003, 4299113, 4804891, 6283319, 11669021, 81683147]

約数ペア:

[(1, 81683147), (7, 11669021), (13, 6283319), (17, 4804891), (19, 4299113), (49, 1667003), (91, 897617), (119, 686413), (133, 614159), (221, 369607), (247, 330701), (323, 252889), (397, 205751), (637, 128231), (833, 98059), (931, 87737), (1547, 52801), (1729, 47243), (2261, 36127), (2779, 29393), (4199, 19453), (5161, 15827), (6749, 12103), (7543, 10829)]