21537774

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{443}}^1$

素因数の和:561

約数の個数: 48

約数和(自身を含む): 48692592

約数和(自身を除く): 27154818

約数列:

[1, 2, 3, 6, 9, 18, 37, 73, 74, 111, 146, 219, 222, 333, 438, 443, 657, 666, 886, 1314, 1329, 2658, 2701, 3987, 5402, 7974, 8103, 16206, 16391, 24309, 32339, 32782, 48618, 49173, 64678, 97017, 98346, 147519, 194034, 291051, 295038, 582102, 1196543, 2393086, 3589629, 7179258, 10768887, 21537774]

約数ペア:

[(1, 21537774), (2, 10768887), (3, 7179258), (6, 3589629), (9, 2393086), (18, 1196543), (37, 582102), (73, 295038), (74, 291051), (111, 194034), (146, 147519), (219, 98346), (222, 97017), (333, 64678), (438, 49173), (443, 48618), (657, 32782), (666, 32339), (886, 24309), (1314, 16391), (1329, 16206), (2658, 8103), (2701, 7974), (3987, 5402)]