18111256

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:248

約数の個数: 64

約数和(自身を含む): 38966400

約数和(自身を除く): 20855144

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 43, 68, 76, 86, 136, 152, 163, 172, 323, 326, 344, 646, 652, 731, 817, 1292, 1304, 1462, 1634, 2584, 2771, 2924, 3097, 3268, 5542, 5848, 6194, 6536, 7009, 11084, 12388, 13889, 14018, 22168, 24776, 27778, 28036, 52649, 55556, 56072, 105298, 111112, 119153, 133171, 210596, 238306, 266342, 421192, 476612, 532684, 953224, 1065368, 2263907, 4527814, 9055628, 18111256]

約数ペア:

[(1, 18111256), (2, 9055628), (4, 4527814), (8, 2263907), (17, 1065368), (19, 953224), (34, 532684), (38, 476612), (43, 421192), (68, 266342), (76, 238306), (86, 210596), (136, 133171), (152, 119153), (163, 111112), (172, 105298), (323, 56072), (326, 55556), (344, 52649), (646, 28036), (652, 27778), (731, 24776), (817, 22168), (1292, 14018), (1304, 13889), (1462, 12388), (1634, 11084), (2584, 7009), (2771, 6536), (2924, 6194), (3097, 5848), (3268, 5542)]