31687071

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{293}}^1$

素因数の和:415

約数の個数: 32

約数和(自身を含む): 47416320

約数和(自身を除く): 15729249

約数列:

[1, 3, 13, 39, 47, 59, 141, 177, 293, 611, 767, 879, 1833, 2301, 2773, 3809, 8319, 11427, 13771, 17287, 36049, 41313, 51861, 108147, 179023, 224731, 537069, 674193, 812489, 2437467, 10562357, 31687071]

約数ペア:

[(1, 31687071), (3, 10562357), (13, 2437467), (39, 812489), (47, 674193), (59, 537069), (141, 224731), (177, 179023), (293, 108147), (611, 51861), (767, 41313), (879, 36049), (1833, 17287), (2301, 13771), (2773, 11427), (3809, 8319)]