1821409996

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{79621}}^1$

素因数の和:79694

約数の個数: 48

約数和(自身を含む): 3923772160

約数和(自身を除く): 2102362164

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 43, 76, 86, 133, 172, 266, 301, 532, 602, 817, 1204, 1634, 3268, 5719, 11438, 22876, 79621, 159242, 318484, 557347, 1114694, 1512799, 2229388, 3025598, 3423703, 6051196, 6847406, 10589593, 13694812, 21179186, 23965921, 42358372, 47931842, 65050357, 95863684, 130100714, 260201428, 455352499, 910704998, 1821409996]

約数ペア:

[(1, 1821409996), (2, 910704998), (4, 455352499), (7, 260201428), (14, 130100714), (19, 95863684), (28, 65050357), (38, 47931842), (43, 42358372), (76, 23965921), (86, 21179186), (133, 13694812), (172, 10589593), (266, 6847406), (301, 6051196), (532, 3423703), (602, 3025598), (817, 2229388), (1204, 1512799), (1634, 1114694), (3268, 557347), (5719, 318484), (11438, 159242), (22876, 79621)]