81431028

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{107713}}^1$

素因数の和:107733

約数の個数: 48

約数和(自身を含む): 241279360

約数和(自身を除く): 159848332

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756, 107713, 215426, 323139, 430852, 646278, 753991, 969417, 1292556, 1507982, 1938834, 2261973, 2908251, 3015964, 3877668, 4523946, 5816502, 6785919, 9047892, 11633004, 13571838, 20357757, 27143676, 40715514, 81431028]

約数ペア:

[(1, 81431028), (2, 40715514), (3, 27143676), (4, 20357757), (6, 13571838), (7, 11633004), (9, 9047892), (12, 6785919), (14, 5816502), (18, 4523946), (21, 3877668), (27, 3015964), (28, 2908251), (36, 2261973), (42, 1938834), (54, 1507982), (63, 1292556), (84, 969417), (108, 753991), (126, 646278), (189, 430852), (252, 323139), (378, 215426), (756, 107713)]