20976159

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{1321}}^1$

素因数の和:1470

約数の個数: 16

約数和(自身を含む): 28766720

約数和(自身を除く): 7790561

約数列:

[1, 3, 67, 79, 201, 237, 1321, 3963, 5293, 15879, 88507, 104359, 265521, 313077, 6992053, 20976159]

約数ペア:

[(1, 20976159), (3, 6992053), (67, 313077), (79, 265521), (201, 104359), (237, 88507), (1321, 15879), (3963, 5293)]