21969972

素因数分解:

$2^2\times 3^2\times {\mathrm{499}}^1\times {\mathrm{1223}}^1$

素因数の和:1732

約数の個数: 36

約数和(自身を含む): 55692000

約数和(自身を除く): 33722028

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 499, 998, 1223, 1497, 1996, 2446, 2994, 3669, 4491, 4892, 5988, 7338, 8982, 11007, 14676, 17964, 22014, 44028, 610277, 1220554, 1830831, 2441108, 3661662, 5492493, 7323324, 10984986, 21969972]

約数ペア:

[(1, 21969972), (2, 10984986), (3, 7323324), (4, 5492493), (6, 3661662), (9, 2441108), (12, 1830831), (18, 1220554), (36, 610277), (499, 44028), (998, 22014), (1223, 17964), (1497, 14676), (1996, 11007), (2446, 8982), (2994, 7338), (3669, 5988), (4491, 4892)]