18545488

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{547}}^1$

素因数の和:731

約数の個数: 40

約数和(自身を含む): 39004448

約数和(自身を除く): 20458960

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 163, 208, 326, 547, 652, 1094, 1304, 2119, 2188, 2608, 4238, 4376, 7111, 8476, 8752, 14222, 16952, 28444, 33904, 56888, 89161, 113776, 178322, 356644, 713288, 1159093, 1426576, 2318186, 4636372, 9272744, 18545488]

約数ペア:

[(1, 18545488), (2, 9272744), (4, 4636372), (8, 2318186), (13, 1426576), (16, 1159093), (26, 713288), (52, 356644), (104, 178322), (163, 113776), (208, 89161), (326, 56888), (547, 33904), (652, 28444), (1094, 16952), (1304, 14222), (2119, 8752), (2188, 8476), (2608, 7111), (4238, 4376)]