21592995

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{173}}^1$

素因数の和:391

約数の個数: 32

約数和(自身を含む): 35629632

約数和(自身を除く): 14036637

約数列:

[1, 3, 5, 15, 53, 157, 159, 173, 265, 471, 519, 785, 795, 865, 2355, 2595, 8321, 9169, 24963, 27161, 27507, 41605, 45845, 81483, 124815, 135805, 137535, 407415, 1439533, 4318599, 7197665, 21592995]

約数ペア:

[(1, 21592995), (3, 7197665), (5, 4318599), (15, 1439533), (53, 407415), (157, 137535), (159, 135805), (173, 124815), (265, 81483), (471, 45845), (519, 41605), (785, 27507), (795, 27161), (865, 24963), (2355, 9169), (2595, 8321)]