20665368

素因数分解:

$2^3\times 3^4\times {\mathrm{31891}}^1$

素因数の和:31909

約数の個数: 40

約数和(自身を含む): 57883980

約数和(自身を除く): 37218612

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648, 31891, 63782, 95673, 127564, 191346, 255128, 287019, 382692, 574038, 765384, 861057, 1148076, 1722114, 2296152, 2583171, 3444228, 5166342, 6888456, 10332684, 20665368]

約数ペア:

[(1, 20665368), (2, 10332684), (3, 6888456), (4, 5166342), (6, 3444228), (8, 2583171), (9, 2296152), (12, 1722114), (18, 1148076), (24, 861057), (27, 765384), (36, 574038), (54, 382692), (72, 287019), (81, 255128), (108, 191346), (162, 127564), (216, 95673), (324, 63782), (648, 31891)]