221611497

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{673}}^1$

素因数の和:857

約数の個数: 32

約数和(自身を含む): 320284800

約数和(自身を除く): 98673303

約数列:

[1, 3, 19, 53, 57, 109, 159, 327, 673, 1007, 2019, 2071, 3021, 5777, 6213, 12787, 17331, 35669, 38361, 73357, 107007, 109763, 220071, 329289, 677711, 1393783, 2033133, 3887921, 4181349, 11663763, 73870499, 221611497]

約数ペア:

[(1, 221611497), (3, 73870499), (19, 11663763), (53, 4181349), (57, 3887921), (109, 2033133), (159, 1393783), (327, 677711), (673, 329289), (1007, 220071), (2019, 109763), (2071, 107007), (3021, 73357), (5777, 38361), (6213, 35669), (12787, 17331)]