21909993

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{35977}}^1$

素因数の和:36016

約数の個数: 16

約数和(自身を含む): 34538880

約数和(自身を除く): 12628887

約数列:

[1, 3, 7, 21, 29, 87, 203, 609, 35977, 107931, 251839, 755517, 1043333, 3129999, 7303331, 21909993]

約数ペア:

[(1, 21909993), (3, 7303331), (7, 3129999), (21, 1043333), (29, 755517), (87, 251839), (203, 107931), (609, 35977)]