21974120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{78479}}^1$

素因数の和:78497

約数の個数: 32

約数和(自身を含む): 56505600

約数和(自身を除く): 34531480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 78479, 156958, 313916, 392395, 549353, 627832, 784790, 1098706, 1569580, 2197412, 2746765, 3139160, 4394824, 5493530, 10987060, 21974120]

約数ペア:

[(1, 21974120), (2, 10987060), (4, 5493530), (5, 4394824), (7, 3139160), (8, 2746765), (10, 2197412), (14, 1569580), (20, 1098706), (28, 784790), (35, 627832), (40, 549353), (56, 392395), (70, 313916), (140, 156958), (280, 78479)]