21337323

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{1009}}^1$

素因数の和:1091

約数の個数: 32

約数和(自身を含む): 34905600

約数和(自身を除く): 13568277

約数列:

[1, 3, 7, 19, 21, 53, 57, 133, 159, 371, 399, 1007, 1009, 1113, 3021, 3027, 7049, 7063, 19171, 21147, 21189, 53477, 57513, 134197, 160431, 374339, 402591, 1016063, 1123017, 3048189, 7112441, 21337323]

約数ペア:

[(1, 21337323), (3, 7112441), (7, 3048189), (19, 1123017), (21, 1016063), (53, 402591), (57, 374339), (133, 160431), (159, 134197), (371, 57513), (399, 53477), (1007, 21189), (1009, 21147), (1113, 19171), (3021, 7063), (3027, 7049)]