21335344

素因数分解:

$2^4\times {\mathrm{59}}^1\times {\mathrm{97}}^1\times {\mathrm{233}}^1$

素因数の和:397

約数の個数: 40

約数和(自身を含む): 42653520

約数和(自身を除く): 21318176

約数列:

[1, 2, 4, 8, 16, 59, 97, 118, 194, 233, 236, 388, 466, 472, 776, 932, 944, 1552, 1864, 3728, 5723, 11446, 13747, 22601, 22892, 27494, 45202, 45784, 54988, 90404, 91568, 109976, 180808, 219952, 361616, 1333459, 2666918, 5333836, 10667672, 21335344]

約数ペア:

[(1, 21335344), (2, 10667672), (4, 5333836), (8, 2666918), (16, 1333459), (59, 361616), (97, 219952), (118, 180808), (194, 109976), (233, 91568), (236, 90404), (388, 54988), (466, 45784), (472, 45202), (776, 27494), (932, 22892), (944, 22601), (1552, 13747), (1864, 11446), (3728, 5723)]