81289278

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{215051}}^1$

素因数の和:215069

約数の個数: 32

約数和(自身を含む): 206449920

約数和(自身を除く): 125160642

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 215051, 430102, 645153, 1290306, 1505357, 1935459, 3010714, 3870918, 4516071, 5806377, 9032142, 11612754, 13548213, 27096426, 40644639, 81289278]

約数ペア:

[(1, 81289278), (2, 40644639), (3, 27096426), (6, 13548213), (7, 11612754), (9, 9032142), (14, 5806377), (18, 4516071), (21, 3870918), (27, 3010714), (42, 1935459), (54, 1505357), (63, 1290306), (126, 645153), (189, 430102), (378, 215051)]