20935772

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2153}}^1$

素因数の和:2198

約数の個数: 48

約数和(自身を含む): 45595872

約数和(自身を除く): 24660100

約数列:

[1, 2, 4, 11, 13, 17, 22, 26, 34, 44, 52, 68, 143, 187, 221, 286, 374, 442, 572, 748, 884, 2153, 2431, 4306, 4862, 8612, 9724, 23683, 27989, 36601, 47366, 55978, 73202, 94732, 111956, 146404, 307879, 402611, 475813, 615758, 805222, 951626, 1231516, 1610444, 1903252, 5233943, 10467886, 20935772]

約数ペア:

[(1, 20935772), (2, 10467886), (4, 5233943), (11, 1903252), (13, 1610444), (17, 1231516), (22, 951626), (26, 805222), (34, 615758), (44, 475813), (52, 402611), (68, 307879), (143, 146404), (187, 111956), (221, 94732), (286, 73202), (374, 55978), (442, 47366), (572, 36601), (748, 27989), (884, 23683), (2153, 9724), (2431, 8612), (4306, 4862)]