68605257

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{1237}}^1$

素因数の和:1405

約数の個数: 32

約数和(自身を含む): 110924800

約数和(自身を除く): 42319543

約数列:

[1, 3, 7, 19, 21, 57, 133, 139, 399, 417, 973, 1237, 2641, 2919, 3711, 7923, 8659, 18487, 23503, 25977, 55461, 70509, 164521, 171943, 493563, 515829, 1203601, 3266917, 3610803, 9800751, 22868419, 68605257]

約数ペア:

[(1, 68605257), (3, 22868419), (7, 9800751), (19, 3610803), (21, 3266917), (57, 1203601), (133, 515829), (139, 493563), (399, 171943), (417, 164521), (973, 70509), (1237, 55461), (2641, 25977), (2919, 23503), (3711, 18487), (7923, 8659)]