21340773

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{251}}^1$

素因数の和:374

約数の個数: 32

約数和(自身を含む): 32901120

約数和(自身を除く): 11560347

約数列:

[1, 3, 9, 27, 47, 67, 141, 201, 251, 423, 603, 753, 1269, 1809, 2259, 3149, 6777, 9447, 11797, 16817, 28341, 35391, 50451, 85023, 106173, 151353, 318519, 454059, 790399, 2371197, 7113591, 21340773]

約数ペア:

[(1, 21340773), (3, 7113591), (9, 2371197), (27, 790399), (47, 454059), (67, 318519), (141, 151353), (201, 106173), (251, 85023), (423, 50451), (603, 35391), (753, 28341), (1269, 16817), (1809, 11797), (2259, 9447), (3149, 6777)]