20337796

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1$

素因数の和:220

約数の個数: 48

約数和(自身を含む): 39118464

約数和(自身を除く): 18780668

約数列:

[1, 2, 4, 23, 43, 46, 53, 86, 92, 97, 106, 172, 194, 212, 388, 989, 1219, 1978, 2231, 2279, 2438, 3956, 4171, 4462, 4558, 4876, 5141, 8342, 8924, 9116, 10282, 16684, 20564, 52417, 95933, 104834, 118243, 191866, 209668, 221063, 236486, 383732, 442126, 472972, 884252, 5084449, 10168898, 20337796]

約数ペア:

[(1, 20337796), (2, 10168898), (4, 5084449), (23, 884252), (43, 472972), (46, 442126), (53, 383732), (86, 236486), (92, 221063), (97, 209668), (106, 191866), (172, 118243), (194, 104834), (212, 95933), (388, 52417), (989, 20564), (1219, 16684), (1978, 10282), (2231, 9116), (2279, 8924), (2438, 8342), (3956, 5141), (4171, 4876), (4462, 4558)]