20551284

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{43913}}^1$

素因数の和:43936

約数の個数: 36

約数和(自身を含む): 55946436

約数和(自身を除く): 35395152

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 43913, 87826, 131739, 175652, 263478, 395217, 526956, 570869, 790434, 1141738, 1580868, 1712607, 2283476, 3425214, 5137821, 6850428, 10275642, 20551284]

約数ペア:

[(1, 20551284), (2, 10275642), (3, 6850428), (4, 5137821), (6, 3425214), (9, 2283476), (12, 1712607), (13, 1580868), (18, 1141738), (26, 790434), (36, 570869), (39, 526956), (52, 395217), (78, 263478), (117, 175652), (156, 131739), (234, 87826), (468, 43913)]