19419981

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1297}}^1$

素因数の和:1361

約数の個数: 32

約数和(自身を含む): 31899648

約数和(自身を除く): 12479667

約数列:

[1, 3, 7, 21, 23, 31, 69, 93, 161, 217, 483, 651, 713, 1297, 2139, 3891, 4991, 9079, 14973, 27237, 29831, 40207, 89493, 120621, 208817, 281449, 626451, 844347, 924761, 2774283, 6473327, 19419981]

約数ペア:

[(1, 19419981), (3, 6473327), (7, 2774283), (21, 924761), (23, 844347), (31, 626451), (69, 281449), (93, 208817), (161, 120621), (217, 89493), (483, 40207), (651, 29831), (713, 27237), (1297, 14973), (2139, 9079), (3891, 4991)]