21112402

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{6977}}^1$

素因数の和:7085

約数の個数: 16

約数和(自身を含む): 33913080

約数和(自身を除く): 12800678

約数列:

[1, 2, 17, 34, 89, 178, 1513, 3026, 6977, 13954, 118609, 237218, 620953, 1241906, 10556201, 21112402]

約数ペア:

[(1, 21112402), (2, 10556201), (17, 1241906), (34, 620953), (89, 237218), (178, 118609), (1513, 13954), (3026, 6977)]