219975938

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{307}}^1$

素因数の和:487

約数の個数: 64

約数和(自身を含む): 423886848

約数和(自身を除く): 203910910

約数列:

[1, 2, 7, 13, 14, 26, 31, 62, 91, 127, 182, 217, 254, 307, 403, 434, 614, 806, 889, 1651, 1778, 2149, 2821, 3302, 3937, 3991, 4298, 5642, 7874, 7982, 9517, 11557, 19034, 23114, 27559, 27937, 38989, 51181, 55118, 55874, 66619, 77978, 102362, 123721, 133238, 247442, 272923, 358267, 506857, 545846, 716534, 866047, 1013714, 1208659, 1732094, 2417318, 3547999, 7095998, 8460613, 15712567, 16921226, 31425134, 109987969, 219975938]

約数ペア:

[(1, 219975938), (2, 109987969), (7, 31425134), (13, 16921226), (14, 15712567), (26, 8460613), (31, 7095998), (62, 3547999), (91, 2417318), (127, 1732094), (182, 1208659), (217, 1013714), (254, 866047), (307, 716534), (403, 545846), (434, 506857), (614, 358267), (806, 272923), (889, 247442), (1651, 133238), (1778, 123721), (2149, 102362), (2821, 77978), (3302, 66619), (3937, 55874), (3991, 55118), (4298, 51181), (5642, 38989), (7874, 27937), (7982, 27559), (9517, 23114), (11557, 19034)]