21040144

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{1033}}^1$

素因数の和:1127

約数の個数: 40

約数和(自身を含む): 43593440

約数和(自身を除く): 22553296

約数列:

[1, 2, 4, 8, 16, 19, 38, 67, 76, 134, 152, 268, 304, 536, 1033, 1072, 1273, 2066, 2546, 4132, 5092, 8264, 10184, 16528, 19627, 20368, 39254, 69211, 78508, 138422, 157016, 276844, 314032, 553688, 1107376, 1315009, 2630018, 5260036, 10520072, 21040144]

約数ペア:

[(1, 21040144), (2, 10520072), (4, 5260036), (8, 2630018), (16, 1315009), (19, 1107376), (38, 553688), (67, 314032), (76, 276844), (134, 157016), (152, 138422), (268, 78508), (304, 69211), (536, 39254), (1033, 20368), (1072, 19627), (1273, 16528), (2066, 10184), (2546, 8264), (4132, 5092)]