20406903

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{653}}^1\times {\mathrm{947}}^1$

素因数の和:1614

約数の個数: 16

約数和(自身を含む): 29759616

約数和(自身を除く): 9352713

約数列:

[1, 3, 11, 33, 653, 947, 1959, 2841, 7183, 10417, 21549, 31251, 618391, 1855173, 6802301, 20406903]

約数ペア:

[(1, 20406903), (3, 6802301), (11, 1855173), (33, 618391), (653, 31251), (947, 21549), (1959, 10417), (2841, 7183)]