21000879812

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{9817}}^1\times {\mathrm{48619}}^1$

素因数の和:58451

約数の個数: 24

約数和(自身を含む): 40097497440

約数和(自身を除く): 19096617628

約数列:

[1, 2, 4, 11, 22, 44, 9817, 19634, 39268, 48619, 97238, 107987, 194476, 215974, 431948, 534809, 1069618, 2139236, 477292723, 954585446, 1909170892, 5250219953, 10500439906, 21000879812]

約数ペア:

[(1, 21000879812), (2, 10500439906), (4, 5250219953), (11, 1909170892), (22, 954585446), (44, 477292723), (9817, 2139236), (19634, 1069618), (39268, 534809), (48619, 431948), (97238, 215974), (107987, 194476)]