19937056

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{547}}^1$

素因数の和:641

約数の個数: 48

約数和(自身を含む): 42257376

約数和(自身を除く): 22320320

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 67, 68, 134, 136, 268, 272, 536, 544, 547, 1072, 1094, 1139, 2144, 2188, 2278, 4376, 4556, 8752, 9112, 9299, 17504, 18224, 18598, 36448, 36649, 37196, 73298, 74392, 146596, 148784, 293192, 297568, 586384, 623033, 1172768, 1246066, 2492132, 4984264, 9968528, 19937056]

約数ペア:

[(1, 19937056), (2, 9968528), (4, 4984264), (8, 2492132), (16, 1246066), (17, 1172768), (32, 623033), (34, 586384), (67, 297568), (68, 293192), (134, 148784), (136, 146596), (268, 74392), (272, 73298), (536, 37196), (544, 36649), (547, 36448), (1072, 18598), (1094, 18224), (1139, 17504), (2144, 9299), (2188, 9112), (2278, 8752), (4376, 4556)]