18531344

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{41}}^2\times {\mathrm{53}}^1$

素因数の和:156

約数の個数: 60

約数和(自身を含む): 40380228

約数和(自身を除く): 21848884

約数列:

[1, 2, 4, 8, 13, 16, 26, 41, 52, 53, 82, 104, 106, 164, 208, 212, 328, 424, 533, 656, 689, 848, 1066, 1378, 1681, 2132, 2173, 2756, 3362, 4264, 4346, 5512, 6724, 8528, 8692, 11024, 13448, 17384, 21853, 26896, 28249, 34768, 43706, 56498, 87412, 89093, 112996, 174824, 178186, 225992, 349648, 356372, 451984, 712744, 1158209, 1425488, 2316418, 4632836, 9265672, 18531344]

約数ペア:

[(1, 18531344), (2, 9265672), (4, 4632836), (8, 2316418), (13, 1425488), (16, 1158209), (26, 712744), (41, 451984), (52, 356372), (53, 349648), (82, 225992), (104, 178186), (106, 174824), (164, 112996), (208, 89093), (212, 87412), (328, 56498), (424, 43706), (533, 34768), (656, 28249), (689, 26896), (848, 21853), (1066, 17384), (1378, 13448), (1681, 11024), (2132, 8692), (2173, 8528), (2756, 6724), (3362, 5512), (4264, 4346)]