21491442

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{281}}^1\times {\mathrm{607}}^1$

素因数の和:903

約数の個数: 48

約数和(自身を含む): 53494272

約数和(自身を除く): 32002830

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 281, 562, 607, 843, 1214, 1686, 1821, 1967, 2529, 3642, 3934, 4249, 5058, 5463, 5901, 8498, 10926, 11802, 12747, 17703, 25494, 35406, 38241, 76482, 170567, 341134, 511701, 1023402, 1193969, 1535103, 2387938, 3070206, 3581907, 7163814, 10745721, 21491442]

約数ペア:

[(1, 21491442), (2, 10745721), (3, 7163814), (6, 3581907), (7, 3070206), (9, 2387938), (14, 1535103), (18, 1193969), (21, 1023402), (42, 511701), (63, 341134), (126, 170567), (281, 76482), (562, 38241), (607, 35406), (843, 25494), (1214, 17703), (1686, 12747), (1821, 11802), (1967, 10926), (2529, 8498), (3642, 5901), (3934, 5463), (4249, 5058)]