401433921

素因数分解:

$3^3\times 7^2\times {\mathrm{29}}^1\times {\mathrm{10463}}^1$

素因数の和:10515

約数の個数: 48

約数和(自身を含む): 715737600

約数和(自身を除く): 314303679

約数列:

[1, 3, 7, 9, 21, 27, 29, 49, 63, 87, 147, 189, 203, 261, 441, 609, 783, 1323, 1421, 1827, 4263, 5481, 10463, 12789, 31389, 38367, 73241, 94167, 219723, 282501, 303427, 512687, 659169, 910281, 1538061, 1977507, 2123989, 2730843, 4614183, 6371967, 8192529, 13842549, 14867923, 19115901, 44603769, 57347703, 133811307, 401433921]

約数ペア:

[(1, 401433921), (3, 133811307), (7, 57347703), (9, 44603769), (21, 19115901), (27, 14867923), (29, 13842549), (49, 8192529), (63, 6371967), (87, 4614183), (147, 2730843), (189, 2123989), (203, 1977507), (261, 1538061), (441, 910281), (609, 659169), (783, 512687), (1323, 303427), (1421, 282501), (1827, 219723), (4263, 94167), (5481, 73241), (10463, 38367), (12789, 31389)]