19873612

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{163}}^2$

素因数の和:358

約数の個数: 36

約数和(自身を含む): 40420296

約数和(自身を除く): 20546684

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 163, 187, 326, 374, 652, 748, 1793, 2771, 3586, 5542, 7172, 11084, 26569, 30481, 53138, 60962, 106276, 121924, 292259, 451673, 584518, 903346, 1169036, 1806692, 4968403, 9936806, 19873612]

約数ペア:

[(1, 19873612), (2, 9936806), (4, 4968403), (11, 1806692), (17, 1169036), (22, 903346), (34, 584518), (44, 451673), (68, 292259), (163, 121924), (187, 106276), (326, 60962), (374, 53138), (652, 30481), (748, 26569), (1793, 11084), (2771, 7172), (3586, 5542)]