221781768

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{710839}}^1$

素因数の和:710861

約数の個数: 32

約数和(自身を含む): 597105600

約数和(自身を除く): 375323832

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 710839, 1421678, 2132517, 2843356, 4265034, 5686712, 8530068, 9240907, 17060136, 18481814, 27722721, 36963628, 55445442, 73927256, 110890884, 221781768]

約数ペア:

[(1, 221781768), (2, 110890884), (3, 73927256), (4, 55445442), (6, 36963628), (8, 27722721), (12, 18481814), (13, 17060136), (24, 9240907), (26, 8530068), (39, 5686712), (52, 4265034), (78, 2843356), (104, 2132517), (156, 1421678), (312, 710839)]