18393915

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{1361}}^1$

素因数の和:1439

約数の個数: 32

約数和(自身を含む): 31772736

約数和(自身を除く): 13378821

約数列:

[1, 3, 5, 15, 17, 51, 53, 85, 159, 255, 265, 795, 901, 1361, 2703, 4083, 4505, 6805, 13515, 20415, 23137, 69411, 72133, 115685, 216399, 347055, 360665, 1081995, 1226261, 3678783, 6131305, 18393915]

約数ペア:

[(1, 18393915), (3, 6131305), (5, 3678783), (15, 1226261), (17, 1081995), (51, 360665), (53, 347055), (85, 216399), (159, 115685), (255, 72133), (265, 69411), (795, 23137), (901, 20415), (1361, 13515), (2703, 6805), (4083, 4505)]