217778085

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{230453}}^1$

素因数の和:230474

約数の個数: 32

約数和(自身を含む): 442471680

約数和(自身を除く): 224693595

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 230453, 691359, 1152265, 1613171, 2074077, 3456795, 4839513, 6222231, 8065855, 10370385, 14518539, 24197565, 31111155, 43555617, 72592695, 217778085]

約数ペア:

[(1, 217778085), (3, 72592695), (5, 43555617), (7, 31111155), (9, 24197565), (15, 14518539), (21, 10370385), (27, 8065855), (35, 6222231), (45, 4839513), (63, 3456795), (105, 2074077), (135, 1613171), (189, 1152265), (315, 691359), (945, 230453)]