21197804537

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1327}}^1\times {\mathrm{9239}}^1$

素因数の和:10605

約数の個数: 32

約数和(自身を含む): 27486412800

約数和(自身を除く): 6288608263

約数列:

[1, 7, 13, 19, 91, 133, 247, 1327, 1729, 9239, 9289, 17251, 25213, 64673, 120107, 120757, 175541, 176491, 327769, 840749, 1228787, 2282033, 2294383, 12260153, 15974231, 85821071, 159381989, 232942907, 1115673923, 1630600349, 3028257791, 21197804537]

約数ペア:

[(1, 21197804537), (7, 3028257791), (13, 1630600349), (19, 1115673923), (91, 232942907), (133, 159381989), (247, 85821071), (1327, 15974231), (1729, 12260153), (9239, 2294383), (9289, 2282033), (17251, 1228787), (25213, 840749), (64673, 327769), (120107, 176491), (120757, 175541)]