20699972

素因数分解:

$2^2\times {\mathrm{109}}^1\times {\mathrm{197}}^1\times {\mathrm{241}}^1$

素因数の和:551

約数の個数: 24

約数和(自身を含む): 36895320

約数和(自身を除く): 16195348

約数列:

[1, 2, 4, 109, 197, 218, 241, 394, 436, 482, 788, 964, 21473, 26269, 42946, 47477, 52538, 85892, 94954, 105076, 189908, 5174993, 10349986, 20699972]

約数ペア:

[(1, 20699972), (2, 10349986), (4, 5174993), (109, 189908), (197, 105076), (218, 94954), (241, 85892), (394, 52538), (436, 47477), (482, 42946), (788, 26269), (964, 21473)]