21642738

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{293}}^1\times {\mathrm{947}}^1$

素因数の和:1258

約数の個数: 32

約数和(自身を含む): 46823616

約数和(自身を除く): 25180878

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 293, 586, 879, 947, 1758, 1894, 2841, 3809, 5682, 7618, 11427, 12311, 22854, 24622, 36933, 73866, 277471, 554942, 832413, 1664826, 3607123, 7214246, 10821369, 21642738]

約数ペア:

[(1, 21642738), (2, 10821369), (3, 7214246), (6, 3607123), (13, 1664826), (26, 832413), (39, 554942), (78, 277471), (293, 73866), (586, 36933), (879, 24622), (947, 22854), (1758, 12311), (1894, 11427), (2841, 7618), (3809, 5682)]