21619803

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:235

約数の個数: 32

約数和(自身を含む): 31363072

約数和(自身を除く): 9743269

約数列:

[1, 3, 31, 37, 61, 93, 103, 111, 183, 309, 1147, 1891, 2257, 3193, 3441, 3811, 5673, 6283, 6771, 9579, 11433, 18849, 69967, 118141, 194773, 209901, 232471, 354423, 584319, 697413, 7206601, 21619803]

約数ペア:

[(1, 21619803), (3, 7206601), (31, 697413), (37, 584319), (61, 354423), (93, 232471), (103, 209901), (111, 194773), (183, 118141), (309, 69967), (1147, 18849), (1891, 11433), (2257, 9579), (3193, 6771), (3441, 6283), (3811, 5673)]