21555932

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{643}}^1$

素因数の和:710

約数の個数: 36

約数和(自身を含む): 41518680

約数和(自身を除く): 19962748

約数列:

[1, 2, 4, 17, 29, 34, 58, 68, 116, 289, 493, 578, 643, 986, 1156, 1286, 1972, 2572, 8381, 10931, 16762, 18647, 21862, 33524, 37294, 43724, 74588, 185827, 316999, 371654, 633998, 743308, 1267996, 5388983, 10777966, 21555932]

約数ペア:

[(1, 21555932), (2, 10777966), (4, 5388983), (17, 1267996), (29, 743308), (34, 633998), (58, 371654), (68, 316999), (116, 185827), (289, 74588), (493, 43724), (578, 37294), (643, 33524), (986, 21862), (1156, 18647), (1286, 16762), (1972, 10931), (2572, 8381)]