21729680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{38803}}^1$

素因数の和:38823

約数の個数: 40

約数和(自身を含む): 57740352

約数和(自身を除く): 36010672

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 38803, 77606, 155212, 194015, 271621, 310424, 388030, 543242, 620848, 776060, 1086484, 1358105, 1552120, 2172968, 2716210, 3104240, 4345936, 5432420, 10864840, 21729680]

約数ペア:

[(1, 21729680), (2, 10864840), (4, 5432420), (5, 4345936), (7, 3104240), (8, 2716210), (10, 2172968), (14, 1552120), (16, 1358105), (20, 1086484), (28, 776060), (35, 620848), (40, 543242), (56, 388030), (70, 310424), (80, 271621), (112, 194015), (140, 155212), (280, 77606), (560, 38803)]