17964947

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1$

素因数の和:299

約数の個数: 32

約数和(自身を含む): 24482304

約数和(自身を除く): 6517357

約数列:

[1, 7, 11, 13, 77, 91, 131, 137, 143, 917, 959, 1001, 1441, 1507, 1703, 1781, 10087, 10549, 11921, 12467, 17947, 18733, 19591, 125629, 131131, 137137, 197417, 233311, 1381919, 1633177, 2566421, 17964947]

約数ペア:

[(1, 17964947), (7, 2566421), (11, 1633177), (13, 1381919), (77, 233311), (91, 197417), (131, 137137), (137, 131131), (143, 125629), (917, 19591), (959, 18733), (1001, 17947), (1441, 12467), (1507, 11921), (1703, 10549), (1781, 10087)]