21299648

素因数分解:

$2^6\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:229

約数の個数: 56

約数和(自身を含む): 44208192

約数和(自身を除く): 22908544

約数列:

[1, 2, 4, 8, 16, 32, 47, 64, 73, 94, 97, 146, 188, 194, 292, 376, 388, 584, 752, 776, 1168, 1504, 1552, 2336, 3008, 3104, 3431, 4559, 4672, 6208, 6862, 7081, 9118, 13724, 14162, 18236, 27448, 28324, 36472, 54896, 56648, 72944, 109792, 113296, 145888, 219584, 226592, 291776, 332807, 453184, 665614, 1331228, 2662456, 5324912, 10649824, 21299648]

約数ペア:

[(1, 21299648), (2, 10649824), (4, 5324912), (8, 2662456), (16, 1331228), (32, 665614), (47, 453184), (64, 332807), (73, 291776), (94, 226592), (97, 219584), (146, 145888), (188, 113296), (194, 109792), (292, 72944), (376, 56648), (388, 54896), (584, 36472), (752, 28324), (776, 27448), (1168, 18236), (1504, 14162), (1552, 13724), (2336, 9118), (3008, 7081), (3104, 6862), (3431, 6208), (4559, 4672)]