221407977

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{198929}}^1$

素因数の和:198992

約数の個数: 16

約数和(自身を含む): 343751040

約数和(自身を除く): 122343063

約数列:

[1, 3, 7, 21, 53, 159, 371, 1113, 198929, 596787, 1392503, 4177509, 10543237, 31629711, 73802659, 221407977]

約数ペア:

[(1, 221407977), (3, 73802659), (7, 31629711), (21, 10543237), (53, 4177509), (159, 1392503), (371, 596787), (1113, 198929)]