21901162305

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{7807901}}^1$

素因数の和:7807937

約数の個数: 32

約数和(自身を含む): 40476163968

約数和(自身を除く): 18575001663

約数列:

[1, 3, 5, 11, 15, 17, 33, 51, 55, 85, 165, 187, 255, 561, 935, 2805, 7807901, 23423703, 39039505, 85886911, 117118515, 132734317, 257660733, 398202951, 429434555, 663671585, 1288303665, 1460077487, 1991014755, 4380232461, 7300387435, 21901162305]

約数ペア:

[(1, 21901162305), (3, 7300387435), (5, 4380232461), (11, 1991014755), (15, 1460077487), (17, 1288303665), (33, 663671585), (51, 429434555), (55, 398202951), (85, 257660733), (165, 132734317), (187, 117118515), (255, 85886911), (561, 39039505), (935, 23423703), (2805, 7807901)]