197949921

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{293}}^1\times {\mathrm{1019}}^1$

素因数の和:1345

約数の個数: 32

約数和(自身を含む): 302279040

約数和(自身を除く): 104329119

約数列:

[1, 3, 13, 17, 39, 51, 221, 293, 663, 879, 1019, 3057, 3809, 4981, 11427, 13247, 14943, 17323, 39741, 51969, 64753, 194259, 225199, 298567, 675597, 895701, 3881371, 5075639, 11644113, 15226917, 65983307, 197949921]

約数ペア:

[(1, 197949921), (3, 65983307), (13, 15226917), (17, 11644113), (39, 5075639), (51, 3881371), (221, 895701), (293, 675597), (663, 298567), (879, 225199), (1019, 194259), (3057, 64753), (3809, 51969), (4981, 39741), (11427, 17323), (13247, 14943)]