21431186

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{1699}}^1$

素因数の和:1778

約数の個数: 32

約数和(自身を含む): 39657600

約数和(自身を除く): 18226414

約数列:

[1, 2, 7, 14, 17, 34, 53, 106, 119, 238, 371, 742, 901, 1699, 1802, 3398, 6307, 11893, 12614, 23786, 28883, 57766, 90047, 180094, 202181, 404362, 630329, 1260658, 1530799, 3061598, 10715593, 21431186]

約数ペア:

[(1, 21431186), (2, 10715593), (7, 3061598), (14, 1530799), (17, 1260658), (34, 630329), (53, 404362), (106, 202181), (119, 180094), (238, 90047), (371, 57766), (742, 28883), (901, 23786), (1699, 12614), (1802, 11893), (3398, 6307)]