18836158

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{389}}^1$

素因数の和:504

約数の個数: 32

約数和(自身を含む): 32348160

約数和(自身を除く): 13512002

約数列:

[1, 2, 11, 22, 31, 62, 71, 142, 341, 389, 682, 778, 781, 1562, 2201, 4279, 4402, 8558, 12059, 24118, 24211, 27619, 48422, 55238, 132649, 265298, 303809, 607618, 856189, 1712378, 9418079, 18836158]

約数ペア:

[(1, 18836158), (2, 9418079), (11, 1712378), (22, 856189), (31, 607618), (62, 303809), (71, 265298), (142, 132649), (341, 55238), (389, 48422), (682, 27619), (778, 24211), (781, 24118), (1562, 12059), (2201, 8558), (4279, 4402)]