19307665

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{173}}^1$

素因数の和:309

約数の個数: 32

約数和(自身を含む): 26834976

約数和(自身を除く): 7527311

約数列:

[1, 5, 13, 17, 65, 85, 101, 173, 221, 505, 865, 1105, 1313, 1717, 2249, 2941, 6565, 8585, 11245, 14705, 17473, 22321, 38233, 87365, 111605, 191165, 227149, 297041, 1135745, 1485205, 3861533, 19307665]

約数ペア:

[(1, 19307665), (5, 3861533), (13, 1485205), (17, 1135745), (65, 297041), (85, 227149), (101, 191165), (173, 111605), (221, 87365), (505, 38233), (865, 22321), (1105, 17473), (1313, 14705), (1717, 11245), (2249, 8585), (2941, 6565)]