221647972

素因数分解:

$2^2\times 7^3\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{43}}^1$

素因数の和:115

約数の個数: 144

約数和(自身を含む): 529513600

約数和(自身を除く): 307865628

約数列:

[1, 2, 4, 7, 13, 14, 17, 26, 28, 34, 43, 49, 52, 68, 86, 91, 98, 119, 172, 182, 196, 221, 238, 289, 301, 343, 364, 442, 476, 559, 578, 602, 637, 686, 731, 833, 884, 1118, 1156, 1204, 1274, 1372, 1462, 1547, 1666, 2023, 2107, 2236, 2548, 2924, 3094, 3332, 3757, 3913, 4046, 4214, 4459, 5117, 5831, 6188, 7514, 7826, 8092, 8428, 8918, 9503, 10234, 10829, 11662, 12427, 14161, 14749, 15028, 15652, 17836, 19006, 20468, 21658, 23324, 24854, 26299, 27391, 28322, 29498, 35819, 38012, 43316, 49708, 52598, 54782, 56644, 58996, 66521, 71638, 75803, 86989, 99127, 105196, 109564, 133042, 143276, 151606, 161551, 173978, 184093, 191737, 198254, 250733, 266084, 303212, 323102, 347956, 368186, 383474, 396508, 465647, 501466, 608923, 646204, 736372, 766948, 931294, 1002932, 1130857, 1217846, 1288651, 1862588, 2261714, 2435692, 2577302, 3259529, 4262461, 4523428, 5154604, 6519058, 7915999, 8524922, 13038116, 15831998, 17049844, 31663996, 55411993, 110823986, 221647972]

約数ペア:

[(1, 221647972), (2, 110823986), (4, 55411993), (7, 31663996), (13, 17049844), (14, 15831998), (17, 13038116), (26, 8524922), (28, 7915999), (34, 6519058), (43, 5154604), (49, 4523428), (52, 4262461), (68, 3259529), (86, 2577302), (91, 2435692), (98, 2261714), (119, 1862588), (172, 1288651), (182, 1217846), (196, 1130857), (221, 1002932), (238, 931294), (289, 766948), (301, 736372), (343, 646204), (364, 608923), (442, 501466), (476, 465647), (559, 396508), (578, 383474), (602, 368186), (637, 347956), (686, 323102), (731, 303212), (833, 266084), (884, 250733), (1118, 198254), (1156, 191737), (1204, 184093), (1274, 173978), (1372, 161551), (1462, 151606), (1547, 143276), (1666, 133042), (2023, 109564), (2107, 105196), (2236, 99127), (2548, 86989), (2924, 75803), (3094, 71638), (3332, 66521), (3757, 58996), (3913, 56644), (4046, 54782), (4214, 52598), (4459, 49708), (5117, 43316), (5831, 38012), (6188, 35819), (7514, 29498), (7826, 28322), (8092, 27391), (8428, 26299), (8918, 24854), (9503, 23324), (10234, 21658), (10829, 20468), (11662, 19006), (12427, 17836), (14161, 15652), (14749, 15028)]