21361577552

素因数分解:

$2^4\times 7^1\times {\mathrm{353}}^1\times {\mathrm{540307}}^1$

素因数の和:540675

約数の個数: 40

約数和(自身を含む): 47434719936

約数和(自身を除く): 26073142384

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 353, 706, 1412, 2471, 2824, 4942, 5648, 9884, 19768, 39536, 540307, 1080614, 2161228, 3782149, 4322456, 7564298, 8644912, 15128596, 30257192, 60514384, 190728371, 381456742, 762913484, 1335098597, 1525826968, 2670197194, 3051653936, 5340394388, 10680788776, 21361577552]

約数ペア:

[(1, 21361577552), (2, 10680788776), (4, 5340394388), (7, 3051653936), (8, 2670197194), (14, 1525826968), (16, 1335098597), (28, 762913484), (56, 381456742), (112, 190728371), (353, 60514384), (706, 30257192), (1412, 15128596), (2471, 8644912), (2824, 7564298), (4942, 4322456), (5648, 3782149), (9884, 2161228), (19768, 1080614), (39536, 540307)]