215781709

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{401}}^1$

素因数の和:549

約数の個数: 32

約数和(自身を含む): 262579968

約数和(自身を除く): 46798259

約数列:

[1, 11, 13, 53, 71, 143, 401, 583, 689, 781, 923, 3763, 4411, 5213, 7579, 10153, 21253, 28471, 41393, 48919, 57343, 233783, 276289, 313181, 370123, 538109, 1508963, 3039179, 4071353, 16598593, 19616519, 215781709]

約数ペア:

[(1, 215781709), (11, 19616519), (13, 16598593), (53, 4071353), (71, 3039179), (143, 1508963), (401, 538109), (583, 370123), (689, 313181), (781, 276289), (923, 233783), (3763, 57343), (4411, 48919), (5213, 41393), (7579, 28471), (10153, 21253)]