221892811

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{673}}^1$

素因数の和:803

約数の個数: 32

約数和(自身を含む): 278658560

約数和(自身を除く): 56765749

約数列:

[1, 7, 19, 37, 67, 133, 259, 469, 673, 703, 1273, 2479, 4711, 4921, 8911, 12787, 17353, 24901, 45091, 47101, 89509, 174307, 315637, 329707, 473119, 856729, 1668367, 3311833, 5997103, 11678569, 31698973, 221892811]

約数ペア:

[(1, 221892811), (7, 31698973), (19, 11678569), (37, 5997103), (67, 3311833), (133, 1668367), (259, 856729), (469, 473119), (673, 329707), (703, 315637), (1273, 174307), (2479, 89509), (4711, 47101), (4921, 45091), (8911, 24901), (12787, 17353)]