20809278

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{55051}}^1$

素因数の和:55069

約数の個数: 32

約数和(自身を含む): 52849920

約数和(自身を除く): 32040642

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 55051, 110102, 165153, 330306, 385357, 495459, 770714, 990918, 1156071, 1486377, 2312142, 2972754, 3468213, 6936426, 10404639, 20809278]

約数ペア:

[(1, 20809278), (2, 10404639), (3, 6936426), (6, 3468213), (7, 2972754), (9, 2312142), (14, 1486377), (18, 1156071), (21, 990918), (27, 770714), (42, 495459), (54, 385357), (63, 330306), (126, 165153), (189, 110102), (378, 55051)]