20471649

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{197}}^1$

素因数の和:325

約数の個数: 32

約数和(自身を含む): 31021056

約数和(自身を除く): 10549407

約数列:

[1, 3, 11, 33, 47, 67, 141, 197, 201, 517, 591, 737, 1551, 2167, 2211, 3149, 6501, 9259, 9447, 13199, 27777, 34639, 39597, 101849, 103917, 145189, 305547, 435567, 620353, 1861059, 6823883, 20471649]

約数ペア:

[(1, 20471649), (3, 6823883), (11, 1861059), (33, 620353), (47, 435567), (67, 305547), (141, 145189), (197, 103917), (201, 101849), (517, 39597), (591, 34639), (737, 27777), (1551, 13199), (2167, 9447), (2211, 9259), (3149, 6501)]