2151478

素因数分解:

$2^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{643}}^1$

素因数の和:891

約数の個数: 16

約数和(自身を含む): 3709440

約数和(自身を除く): 1557962

約数列:

[1, 2, 7, 14, 239, 478, 643, 1286, 1673, 3346, 4501, 9002, 153677, 307354, 1075739, 2151478]

約数ペア:

[(1, 2151478), (2, 1075739), (7, 307354), (14, 153677), (239, 9002), (478, 4501), (643, 3346), (1286, 1673)]