21621999

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{16879}}^1$

素因数の和:16950

約数の個数: 16

約数和(自身を含む): 33489920

約数和(自身を除く): 11867921

約数列:

[1, 3, 7, 21, 61, 183, 427, 1281, 16879, 50637, 118153, 354459, 1029619, 3088857, 7207333, 21621999]

約数ペア:

[(1, 21621999), (3, 7207333), (7, 3088857), (21, 1029619), (61, 354459), (183, 118153), (427, 50637), (1281, 16879)]