20117409

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1597}}^1$

素因数の和:1649

約数の個数: 32

約数和(自身を含む): 32215680

約数和(自身を除く): 12098271

約数列:

[1, 3, 13, 17, 19, 39, 51, 57, 221, 247, 323, 663, 741, 969, 1597, 4199, 4791, 12597, 20761, 27149, 30343, 62283, 81447, 91029, 352937, 394459, 515831, 1058811, 1183377, 1547493, 6705803, 20117409]

約数ペア:

[(1, 20117409), (3, 6705803), (13, 1547493), (17, 1183377), (19, 1058811), (39, 515831), (51, 394459), (57, 352937), (221, 91029), (247, 81447), (323, 62283), (663, 30343), (741, 27149), (969, 20761), (1597, 12597), (4199, 4791)]