19914973

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{929}}^1$

素因数の和:1056

約数の個数: 16

約数和(自身を含む): 22967280

約数和(自身を除く): 3052307

約数列:

[1, 13, 17, 97, 221, 929, 1261, 1649, 12077, 15793, 21437, 90113, 205309, 1171469, 1531921, 19914973]

約数ペア:

[(1, 19914973), (13, 1531921), (17, 1171469), (97, 205309), (221, 90113), (929, 21437), (1261, 15793), (1649, 12077)]