20021079

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{659}}^1$

素因数の和:735

約数の個数: 32

約数和(自身を含む): 31046400

約数和(自身を除く): 11025321

約数列:

[1, 3, 13, 19, 39, 41, 57, 123, 247, 533, 659, 741, 779, 1599, 1977, 2337, 8567, 10127, 12521, 25701, 27019, 30381, 37563, 81057, 162773, 351247, 488319, 513361, 1053741, 1540083, 6673693, 20021079]

約数ペア:

[(1, 20021079), (3, 6673693), (13, 1540083), (19, 1053741), (39, 513361), (41, 488319), (57, 351247), (123, 162773), (247, 81057), (533, 37563), (659, 30381), (741, 27019), (779, 25701), (1599, 12521), (1977, 10127), (2337, 8567)]