21263748

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{3929}}^1$

素因数の和:3988

約数の個数: 48

約数和(自身を含む): 55460160

約数和(自身を除く): 34196412

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 41, 44, 66, 82, 123, 132, 164, 246, 451, 492, 902, 1353, 1804, 2706, 3929, 5412, 7858, 11787, 15716, 23574, 43219, 47148, 86438, 129657, 161089, 172876, 259314, 322178, 483267, 518628, 644356, 966534, 1771979, 1933068, 3543958, 5315937, 7087916, 10631874, 21263748]

約数ペア:

[(1, 21263748), (2, 10631874), (3, 7087916), (4, 5315937), (6, 3543958), (11, 1933068), (12, 1771979), (22, 966534), (33, 644356), (41, 518628), (44, 483267), (66, 322178), (82, 259314), (123, 172876), (132, 161089), (164, 129657), (246, 86438), (451, 47148), (492, 43219), (902, 23574), (1353, 15716), (1804, 11787), (2706, 7858), (3929, 5412)]