19986628

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{1171}}^1$

素因数の和:1443

約数の個数: 24

約数和(自身を含む): 37213344

約数和(自身を除く): 17226716

約数列:

[1, 2, 4, 17, 34, 68, 251, 502, 1004, 1171, 2342, 4267, 4684, 8534, 17068, 19907, 39814, 79628, 293921, 587842, 1175684, 4996657, 9993314, 19986628]

約数ペア:

[(1, 19986628), (2, 9993314), (4, 4996657), (17, 1175684), (34, 587842), (68, 293921), (251, 79628), (502, 39814), (1004, 19907), (1171, 17068), (2342, 8534), (4267, 4684)]