20754513

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{991}}^1$

素因数の和:1189

約数の個数: 24

約数和(自身を含む): 32497920

約数和(自身を除く): 11743407

約数列:

[1, 3, 9, 13, 39, 117, 179, 537, 991, 1611, 2327, 2973, 6981, 8919, 12883, 20943, 38649, 115947, 177389, 532167, 1596501, 2306057, 6918171, 20754513]

約数ペア:

[(1, 20754513), (3, 6918171), (9, 2306057), (13, 1596501), (39, 532167), (117, 177389), (179, 115947), (537, 38649), (991, 20943), (1611, 12883), (2327, 8919), (2973, 6981)]