201920961

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{1049}}^1$

素因数の和:1389

約数の個数: 32

約数和(自身を含む): 310464000

約数和(自身を除く): 108543039

約数列:

[1, 3, 11, 19, 33, 57, 209, 307, 627, 921, 1049, 3147, 3377, 5833, 10131, 11539, 17499, 19931, 34617, 59793, 64163, 192489, 219241, 322043, 657723, 966129, 3542473, 6118817, 10627419, 18356451, 67306987, 201920961]

約数ペア:

[(1, 201920961), (3, 67306987), (11, 18356451), (19, 10627419), (33, 6118817), (57, 3542473), (209, 966129), (307, 657723), (627, 322043), (921, 219241), (1049, 192489), (3147, 64163), (3377, 59793), (5833, 34617), (10131, 19931), (11539, 17499)]