21207804925

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{661}}^1\times {\mathrm{55799}}^1$

素因数の和:56493

約数の個数: 24

約数和(自身を含む): 27483062400

約数和(自身を除く): 6275257475

約数列:

[1, 5, 23, 25, 115, 575, 661, 3305, 15203, 16525, 55799, 76015, 278995, 380075, 1283377, 1394975, 6416885, 32084425, 36883139, 184415695, 848312197, 922078475, 4241560985, 21207804925]

約数ペア:

[(1, 21207804925), (5, 4241560985), (23, 922078475), (25, 848312197), (115, 184415695), (575, 36883139), (661, 32084425), (3305, 6416885), (15203, 1394975), (16525, 1283377), (55799, 380075), (76015, 278995)]