21416640

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{3187}}^1$

素因数の和:3214

約数の個数: 112

約数和(自身を含む): 77736192

約数和(自身を除く): 56319552

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 420, 448, 480, 560, 672, 840, 960, 1120, 1344, 1680, 2240, 3187, 3360, 6374, 6720, 9561, 12748, 15935, 19122, 22309, 25496, 31870, 38244, 44618, 47805, 50992, 63740, 66927, 76488, 89236, 95610, 101984, 111545, 127480, 133854, 152976, 178472, 191220, 203968, 223090, 254960, 267708, 305952, 334635, 356944, 382440, 446180, 509920, 535416, 611904, 669270, 713888, 764880, 892360, 1019840, 1070832, 1338540, 1427776, 1529760, 1784720, 2141664, 2677080, 3059520, 3569440, 4283328, 5354160, 7138880, 10708320, 21416640]

約数ペア:

[(1, 21416640), (2, 10708320), (3, 7138880), (4, 5354160), (5, 4283328), (6, 3569440), (7, 3059520), (8, 2677080), (10, 2141664), (12, 1784720), (14, 1529760), (15, 1427776), (16, 1338540), (20, 1070832), (21, 1019840), (24, 892360), (28, 764880), (30, 713888), (32, 669270), (35, 611904), (40, 535416), (42, 509920), (48, 446180), (56, 382440), (60, 356944), (64, 334635), (70, 305952), (80, 267708), (84, 254960), (96, 223090), (105, 203968), (112, 191220), (120, 178472), (140, 152976), (160, 133854), (168, 127480), (192, 111545), (210, 101984), (224, 95610), (240, 89236), (280, 76488), (320, 66927), (336, 63740), (420, 50992), (448, 47805), (480, 44618), (560, 38244), (672, 31870), (840, 25496), (960, 22309), (1120, 19122), (1344, 15935), (1680, 12748), (2240, 9561), (3187, 6720), (3360, 6374)]