42820281

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{431}}^1$

素因数の和:546

約数の個数: 48

約数和(自身を含む): 75479040

約数和(自身を除く): 32658759

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 83, 133, 171, 249, 399, 431, 581, 747, 1197, 1293, 1577, 1743, 3017, 3879, 4731, 5229, 8189, 9051, 11039, 14193, 24567, 27153, 33117, 35773, 57323, 73701, 99351, 107319, 171969, 250411, 321957, 515907, 679687, 751233, 2039061, 2253699, 4757809, 6117183, 14273427, 42820281]

約数ペア:

[(1, 42820281), (3, 14273427), (7, 6117183), (9, 4757809), (19, 2253699), (21, 2039061), (57, 751233), (63, 679687), (83, 515907), (133, 321957), (171, 250411), (249, 171969), (399, 107319), (431, 99351), (581, 73701), (747, 57323), (1197, 35773), (1293, 33117), (1577, 27153), (1743, 24567), (3017, 14193), (3879, 11039), (4731, 9051), (5229, 8189)]