217771528

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67547}}^1$

素因数の和:67597

約数の個数: 32

約数和(自身を含む): 453922560

約数和(自身を除く): 236151032

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 806, 1612, 3224, 67547, 135094, 270188, 540376, 878111, 1756222, 2093957, 3512444, 4187914, 7024888, 8375828, 16751656, 27221441, 54442882, 108885764, 217771528]

約数ペア:

[(1, 217771528), (2, 108885764), (4, 54442882), (8, 27221441), (13, 16751656), (26, 8375828), (31, 7024888), (52, 4187914), (62, 3512444), (104, 2093957), (124, 1756222), (248, 878111), (403, 540376), (806, 270188), (1612, 135094), (3224, 67547)]