21787320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{3863}}^1$

素因数の和:3924

約数の個数: 64

約数和(自身を含む): 66769920

約数和(自身を除く): 44982600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 47, 60, 94, 120, 141, 188, 235, 282, 376, 470, 564, 705, 940, 1128, 1410, 1880, 2820, 3863, 5640, 7726, 11589, 15452, 19315, 23178, 30904, 38630, 46356, 57945, 77260, 92712, 115890, 154520, 181561, 231780, 363122, 463560, 544683, 726244, 907805, 1089366, 1452488, 1815610, 2178732, 2723415, 3631220, 4357464, 5446830, 7262440, 10893660, 21787320]

約数ペア:

[(1, 21787320), (2, 10893660), (3, 7262440), (4, 5446830), (5, 4357464), (6, 3631220), (8, 2723415), (10, 2178732), (12, 1815610), (15, 1452488), (20, 1089366), (24, 907805), (30, 726244), (40, 544683), (47, 463560), (60, 363122), (94, 231780), (120, 181561), (141, 154520), (188, 115890), (235, 92712), (282, 77260), (376, 57945), (470, 46356), (564, 38630), (705, 30904), (940, 23178), (1128, 19315), (1410, 15452), (1880, 11589), (2820, 7726), (3863, 5640)]