17886968

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:252

約数の個数: 64

約数和(自身を含む): 38966400

約数和(自身を除く): 21079432

約数列:

[1, 2, 4, 8, 11, 22, 29, 43, 44, 58, 86, 88, 116, 163, 172, 232, 319, 326, 344, 473, 638, 652, 946, 1247, 1276, 1304, 1793, 1892, 2494, 2552, 3586, 3784, 4727, 4988, 7009, 7172, 9454, 9976, 13717, 14018, 14344, 18908, 27434, 28036, 37816, 51997, 54868, 56072, 77099, 103994, 109736, 154198, 203261, 207988, 308396, 406522, 415976, 616792, 813044, 1626088, 2235871, 4471742, 8943484, 17886968]

約数ペア:

[(1, 17886968), (2, 8943484), (4, 4471742), (8, 2235871), (11, 1626088), (22, 813044), (29, 616792), (43, 415976), (44, 406522), (58, 308396), (86, 207988), (88, 203261), (116, 154198), (163, 109736), (172, 103994), (232, 77099), (319, 56072), (326, 54868), (344, 51997), (473, 37816), (638, 28036), (652, 27434), (946, 18908), (1247, 14344), (1276, 14018), (1304, 13717), (1793, 9976), (1892, 9454), (2494, 7172), (2552, 7009), (3586, 4988), (3784, 4727)]