19889964

素因数分解:

$2^2\times 3^2\times {\mathrm{569}}^1\times {\mathrm{971}}^1$

素因数の和:1550

約数の個数: 36

約数和(自身を含む): 50417640

約数和(自身を除く): 30527676

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 569, 971, 1138, 1707, 1942, 2276, 2913, 3414, 3884, 5121, 5826, 6828, 8739, 10242, 11652, 17478, 20484, 34956, 552499, 1104998, 1657497, 2209996, 3314994, 4972491, 6629988, 9944982, 19889964]

約数ペア:

[(1, 19889964), (2, 9944982), (3, 6629988), (4, 4972491), (6, 3314994), (9, 2209996), (12, 1657497), (18, 1104998), (36, 552499), (569, 34956), (971, 20484), (1138, 17478), (1707, 11652), (1942, 10242), (2276, 8739), (2913, 6828), (3414, 5826), (3884, 5121)]