21536823

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{701}}^1$

素因数の和:748

約数の個数: 48

約数和(自身を含む): 38413440

約数和(自身を除く): 16876617

約数列:

[1, 3, 7, 11, 19, 21, 33, 49, 57, 77, 133, 147, 209, 231, 399, 539, 627, 701, 931, 1463, 1617, 2103, 2793, 4389, 4907, 7711, 10241, 13319, 14721, 23133, 30723, 34349, 39957, 53977, 93233, 103047, 146509, 161931, 279699, 377839, 439527, 652631, 1025563, 1133517, 1957893, 3076689, 7178941, 21536823]

約数ペア:

[(1, 21536823), (3, 7178941), (7, 3076689), (11, 1957893), (19, 1133517), (21, 1025563), (33, 652631), (49, 439527), (57, 377839), (77, 279699), (133, 161931), (147, 146509), (209, 103047), (231, 93233), (399, 53977), (539, 39957), (627, 34349), (701, 30723), (931, 23133), (1463, 14721), (1617, 13319), (2103, 10241), (2793, 7711), (4389, 4907)]