19963384

素因数分解:

$2^3\times 7^2\times {\mathrm{127}}^1\times {\mathrm{401}}^1$

素因数の和:548

約数の個数: 48

約数和(自身を含む): 43994880

約数和(自身を除く): 24031496

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 127, 196, 254, 392, 401, 508, 802, 889, 1016, 1604, 1778, 2807, 3208, 3556, 5614, 6223, 7112, 11228, 12446, 19649, 22456, 24892, 39298, 49784, 50927, 78596, 101854, 157192, 203708, 356489, 407416, 712978, 1425956, 2495423, 2851912, 4990846, 9981692, 19963384]

約数ペア:

[(1, 19963384), (2, 9981692), (4, 4990846), (7, 2851912), (8, 2495423), (14, 1425956), (28, 712978), (49, 407416), (56, 356489), (98, 203708), (127, 157192), (196, 101854), (254, 78596), (392, 50927), (401, 49784), (508, 39298), (802, 24892), (889, 22456), (1016, 19649), (1604, 12446), (1778, 11228), (2807, 7112), (3208, 6223), (3556, 5614)]