19787193

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{683}}^1$

素因数の和:758

約数の個数: 32

約数和(自身を含む): 31190400

約数和(自身を除く): 11403207

約数列:

[1, 3, 9, 27, 29, 37, 87, 111, 261, 333, 683, 783, 999, 1073, 2049, 3219, 6147, 9657, 18441, 19807, 25271, 28971, 59421, 75813, 178263, 227439, 534789, 682317, 732859, 2198577, 6595731, 19787193]

約数ペア:

[(1, 19787193), (3, 6595731), (9, 2198577), (27, 732859), (29, 682317), (37, 534789), (87, 227439), (111, 178263), (261, 75813), (333, 59421), (683, 28971), (783, 25271), (999, 19807), (1073, 18441), (2049, 9657), (3219, 6147)]