21594447

素因数分解:

$3^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{2129}}^1$

素因数の和:2172

約数の個数: 36

約数和(自身を含む): 37879920

約数和(自身を除く): 16285473

約数列:

[1, 3, 7, 9, 21, 23, 49, 63, 69, 147, 161, 207, 441, 483, 1127, 1449, 2129, 3381, 6387, 10143, 14903, 19161, 44709, 48967, 104321, 134127, 146901, 312963, 342769, 440703, 938889, 1028307, 2399383, 3084921, 7198149, 21594447]

約数ペア:

[(1, 21594447), (3, 7198149), (7, 3084921), (9, 2399383), (21, 1028307), (23, 938889), (49, 440703), (63, 342769), (69, 312963), (147, 146901), (161, 134127), (207, 104321), (441, 48967), (483, 44709), (1127, 19161), (1449, 14903), (2129, 10143), (3381, 6387)]