20915814

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^2\times {\mathrm{73}}^1$

素因数の和:201

約数の個数: 48

約数和(自身を含む): 45762192

約数和(自身を除く): 24846378

約数列:

[1, 2, 3, 6, 17, 34, 51, 53, 73, 102, 106, 146, 159, 219, 318, 438, 901, 1241, 1802, 2482, 2703, 2809, 3723, 3869, 5406, 5618, 7446, 7738, 8427, 11607, 16854, 23214, 47753, 65773, 95506, 131546, 143259, 197319, 205057, 286518, 394638, 410114, 615171, 1230342, 3485969, 6971938, 10457907, 20915814]

約数ペア:

[(1, 20915814), (2, 10457907), (3, 6971938), (6, 3485969), (17, 1230342), (34, 615171), (51, 410114), (53, 394638), (73, 286518), (102, 205057), (106, 197319), (146, 143259), (159, 131546), (219, 95506), (318, 65773), (438, 47753), (901, 23214), (1241, 16854), (1802, 11607), (2482, 8427), (2703, 7738), (2809, 7446), (3723, 5618), (3869, 5406)]