40987821

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{26737}}^1$

素因数の和:26820

約数の個数: 16

約数和(自身を含む): 63315584

約数和(自身を除く): 22327763

約数列:

[1, 3, 7, 21, 73, 219, 511, 1533, 26737, 80211, 187159, 561477, 1951801, 5855403, 13662607, 40987821]

約数ペア:

[(1, 40987821), (3, 13662607), (7, 5855403), (21, 1951801), (73, 561477), (219, 187159), (511, 80211), (1533, 26737)]