21788728

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{9109}}^1$

素因数の和:9151

約数の個数: 32

約数和(自身を含む): 45914400

約数和(自身を除く): 24125672

約数列:

[1, 2, 4, 8, 13, 23, 26, 46, 52, 92, 104, 184, 299, 598, 1196, 2392, 9109, 18218, 36436, 72872, 118417, 209507, 236834, 419014, 473668, 838028, 947336, 1676056, 2723591, 5447182, 10894364, 21788728]

約数ペア:

[(1, 21788728), (2, 10894364), (4, 5447182), (8, 2723591), (13, 1676056), (23, 947336), (26, 838028), (46, 473668), (52, 419014), (92, 236834), (104, 209507), (184, 118417), (299, 72872), (598, 36436), (1196, 18218), (2392, 9109)]