19869171

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1327}}^1$

素因数の和:1391

約数の個数: 32

約数和(自身を含む): 32636928

約数和(自身を除く): 12767757

約数列:

[1, 3, 7, 21, 23, 31, 69, 93, 161, 217, 483, 651, 713, 1327, 2139, 3981, 4991, 9289, 14973, 27867, 30521, 41137, 91563, 123411, 213647, 287959, 640941, 863877, 946151, 2838453, 6623057, 19869171]

約数ペア:

[(1, 19869171), (3, 6623057), (7, 2838453), (21, 946151), (23, 863877), (31, 640941), (69, 287959), (93, 213647), (161, 123411), (217, 91563), (483, 41137), (651, 30521), (713, 27867), (1327, 14973), (2139, 9289), (3981, 4991)]