19948266

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{523}}^1$

素因数の和:707

約数の個数: 48

約数和(自身を含む): 46921056

約数和(自身を除く): 26972790

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 163, 234, 326, 489, 523, 978, 1046, 1467, 1569, 2119, 2934, 3138, 4238, 4707, 6357, 6799, 9414, 12714, 13598, 19071, 20397, 38142, 40794, 61191, 85249, 122382, 170498, 255747, 511494, 767241, 1108237, 1534482, 2216474, 3324711, 6649422, 9974133, 19948266]

約数ペア:

[(1, 19948266), (2, 9974133), (3, 6649422), (6, 3324711), (9, 2216474), (13, 1534482), (18, 1108237), (26, 767241), (39, 511494), (78, 255747), (117, 170498), (163, 122382), (234, 85249), (326, 61191), (489, 40794), (523, 38142), (978, 20397), (1046, 19071), (1467, 13598), (1569, 12714), (2119, 9414), (2934, 6799), (3138, 6357), (4238, 4707)]