20690156

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{13229}}^1$

素因数の和:13273

約数の個数: 24

約数和(自身を含む): 40007520

約数和(自身を除く): 19317364

約数列:

[1, 2, 4, 17, 23, 34, 46, 68, 92, 391, 782, 1564, 13229, 26458, 52916, 224893, 304267, 449786, 608534, 899572, 1217068, 5172539, 10345078, 20690156]

約数ペア:

[(1, 20690156), (2, 10345078), (4, 5172539), (17, 1217068), (23, 899572), (34, 608534), (46, 449786), (68, 304267), (92, 224893), (391, 52916), (782, 26458), (1564, 13229)]