21828352

素因数分解:

$2^8\times 7^1\times {\mathrm{13}}^1\times {\mathrm{937}}^1$

素因数の和:973

約数の個数: 72

約数和(自身を含む): 53683616

約数和(自身を除く): 31855264

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 128, 182, 208, 224, 256, 364, 416, 448, 728, 832, 896, 937, 1456, 1664, 1792, 1874, 2912, 3328, 3748, 5824, 6559, 7496, 11648, 12181, 13118, 14992, 23296, 24362, 26236, 29984, 48724, 52472, 59968, 85267, 97448, 104944, 119936, 170534, 194896, 209888, 239872, 341068, 389792, 419776, 682136, 779584, 839552, 1364272, 1559168, 1679104, 2728544, 3118336, 5457088, 10914176, 21828352]

約数ペア:

[(1, 21828352), (2, 10914176), (4, 5457088), (7, 3118336), (8, 2728544), (13, 1679104), (14, 1559168), (16, 1364272), (26, 839552), (28, 779584), (32, 682136), (52, 419776), (56, 389792), (64, 341068), (91, 239872), (104, 209888), (112, 194896), (128, 170534), (182, 119936), (208, 104944), (224, 97448), (256, 85267), (364, 59968), (416, 52472), (448, 48724), (728, 29984), (832, 26236), (896, 24362), (937, 23296), (1456, 14992), (1664, 13118), (1792, 12181), (1874, 11648), (2912, 7496), (3328, 6559), (3748, 5824)]