19858036

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{89}}^1\times {\mathrm{461}}^1$

素因数の和:576

約数の個数: 36

約数和(自身を含む): 38710980

約数和(自身を除く): 18852944

約数列:

[1, 2, 4, 11, 22, 44, 89, 121, 178, 242, 356, 461, 484, 922, 979, 1844, 1958, 3916, 5071, 10142, 10769, 20284, 21538, 41029, 43076, 55781, 82058, 111562, 164116, 223124, 451319, 902638, 1805276, 4964509, 9929018, 19858036]

約数ペア:

[(1, 19858036), (2, 9929018), (4, 4964509), (11, 1805276), (22, 902638), (44, 451319), (89, 223124), (121, 164116), (178, 111562), (242, 82058), (356, 55781), (461, 43076), (484, 41029), (922, 21538), (979, 20284), (1844, 10769), (1958, 10142), (3916, 5071)]