21275982

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{419}}^1$

素因数の和:478

約数の個数: 96

約数和(自身を含む): 58705920

約数和(自身を除く): 37429938

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 31, 39, 42, 62, 63, 78, 91, 93, 117, 126, 182, 186, 217, 234, 273, 279, 403, 419, 434, 546, 558, 651, 806, 819, 838, 1209, 1257, 1302, 1638, 1953, 2418, 2514, 2821, 2933, 3627, 3771, 3906, 5447, 5642, 5866, 7254, 7542, 8463, 8799, 10894, 12989, 16341, 16926, 17598, 25389, 25978, 26397, 32682, 38129, 38967, 49023, 50778, 52794, 76258, 77934, 90923, 98046, 114387, 116901, 168857, 181846, 228774, 233802, 272769, 337714, 343161, 506571, 545538, 686322, 818307, 1013142, 1181999, 1519713, 1636614, 2363998, 3039426, 3545997, 7091994, 10637991, 21275982]

約数ペア:

[(1, 21275982), (2, 10637991), (3, 7091994), (6, 3545997), (7, 3039426), (9, 2363998), (13, 1636614), (14, 1519713), (18, 1181999), (21, 1013142), (26, 818307), (31, 686322), (39, 545538), (42, 506571), (62, 343161), (63, 337714), (78, 272769), (91, 233802), (93, 228774), (117, 181846), (126, 168857), (182, 116901), (186, 114387), (217, 98046), (234, 90923), (273, 77934), (279, 76258), (403, 52794), (419, 50778), (434, 49023), (546, 38967), (558, 38129), (651, 32682), (806, 26397), (819, 25978), (838, 25389), (1209, 17598), (1257, 16926), (1302, 16341), (1638, 12989), (1953, 10894), (2418, 8799), (2514, 8463), (2821, 7542), (2933, 7254), (3627, 5866), (3771, 5642), (3906, 5447)]