19938884

素因数分解:

$2^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{4423}}^1$

素因数の和:4464

約数の個数: 36

約数和(自身を含む): 42364224

約数和(自身を除く): 22425340

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 49, 92, 98, 161, 196, 322, 644, 1127, 2254, 4423, 4508, 8846, 17692, 30961, 61922, 101729, 123844, 203458, 216727, 406916, 433454, 712103, 866908, 1424206, 2848412, 4984721, 9969442, 19938884]

約数ペア:

[(1, 19938884), (2, 9969442), (4, 4984721), (7, 2848412), (14, 1424206), (23, 866908), (28, 712103), (46, 433454), (49, 406916), (92, 216727), (98, 203458), (161, 123844), (196, 101729), (322, 61922), (644, 30961), (1127, 17692), (2254, 8846), (4423, 4508)]