21165912

素因数分解:

$2^3\times 3^2\times {\mathrm{73}}^1\times {\mathrm{4027}}^1$

素因数の和:4112

約数の個数: 48

約数和(自身を含む): 58124040

約数和(自身を除く): 36958128

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 73, 146, 219, 292, 438, 584, 657, 876, 1314, 1752, 2628, 4027, 5256, 8054, 12081, 16108, 24162, 32216, 36243, 48324, 72486, 96648, 144972, 289944, 293971, 587942, 881913, 1175884, 1763826, 2351768, 2645739, 3527652, 5291478, 7055304, 10582956, 21165912]

約数ペア:

[(1, 21165912), (2, 10582956), (3, 7055304), (4, 5291478), (6, 3527652), (8, 2645739), (9, 2351768), (12, 1763826), (18, 1175884), (24, 881913), (36, 587942), (72, 293971), (73, 289944), (146, 144972), (219, 96648), (292, 72486), (438, 48324), (584, 36243), (657, 32216), (876, 24162), (1314, 16108), (1752, 12081), (2628, 8054), (4027, 5256)]