21222905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{883}}^1$

素因数の和:941

約数の個数: 32

約数和(自身を含む): 30551040

約数和(自身を除く): 9328135

約数列:

[1, 5, 11, 19, 23, 55, 95, 115, 209, 253, 437, 883, 1045, 1265, 2185, 4415, 4807, 9713, 16777, 20309, 24035, 48565, 83885, 101545, 184547, 223399, 385871, 922735, 1116995, 1929355, 4244581, 21222905]

約数ペア:

[(1, 21222905), (5, 4244581), (11, 1929355), (19, 1116995), (23, 922735), (55, 385871), (95, 223399), (115, 184547), (209, 101545), (253, 83885), (437, 48565), (883, 24035), (1045, 20309), (1265, 16777), (2185, 9713), (4415, 4807)]