20854865647

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1682251}}^1$

素因数の和:1682299

約数の個数: 24

約数和(自身を含む): 27615848832

約数和(自身を除く): 6760983185

約数列:

[1, 7, 11, 23, 49, 77, 161, 253, 539, 1127, 1771, 12397, 1682251, 11775757, 18504761, 38691773, 82430299, 129533327, 270842411, 425609503, 906733289, 1895896877, 2979266521, 20854865647]

約数ペア:

[(1, 20854865647), (7, 2979266521), (11, 1895896877), (23, 906733289), (49, 425609503), (77, 270842411), (161, 129533327), (253, 82430299), (539, 38691773), (1127, 18504761), (1771, 11775757), (12397, 1682251)]