21145335

素因数分解:

$3^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{9461}}^1$

素因数の和:9618

約数の個数: 16

約数和(自身を含む): 34063200

約数和(自身を除く): 12917865

約数列:

[1, 3, 5, 15, 149, 447, 745, 2235, 9461, 28383, 47305, 141915, 1409689, 4229067, 7048445, 21145335]

約数ペア:

[(1, 21145335), (3, 7048445), (5, 4229067), (15, 1409689), (149, 141915), (447, 47305), (745, 28383), (2235, 9461)]