20914284

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{653}}^1$

素因数の和:834

約数の個数: 48

約数和(自身を含む): 52079328

約数和(自身を除く): 31165044

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 157, 204, 314, 471, 628, 653, 942, 1306, 1884, 1959, 2612, 2669, 3918, 5338, 7836, 8007, 10676, 11101, 16014, 22202, 32028, 33303, 44404, 66606, 102521, 133212, 205042, 307563, 410084, 615126, 1230252, 1742857, 3485714, 5228571, 6971428, 10457142, 20914284]

約数ペア:

[(1, 20914284), (2, 10457142), (3, 6971428), (4, 5228571), (6, 3485714), (12, 1742857), (17, 1230252), (34, 615126), (51, 410084), (68, 307563), (102, 205042), (157, 133212), (204, 102521), (314, 66606), (471, 44404), (628, 33303), (653, 32028), (942, 22202), (1306, 16014), (1884, 11101), (1959, 10676), (2612, 8007), (2669, 7836), (3918, 5338)]