155531397

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{1553}}^1$

素因数の和:1833

約数の個数: 32

約数和(自身を含む): 250629120

約数和(自身を除く): 95097723

約数列:

[1, 3, 7, 19, 21, 57, 133, 251, 399, 753, 1553, 1757, 4659, 4769, 5271, 10871, 14307, 29507, 32613, 33383, 88521, 100149, 206549, 389803, 619647, 1169409, 2728621, 7406257, 8185863, 22218771, 51843799, 155531397]

約数ペア:

[(1, 155531397), (3, 51843799), (7, 22218771), (19, 8185863), (21, 7406257), (57, 2728621), (133, 1169409), (251, 619647), (399, 389803), (753, 206549), (1553, 100149), (1757, 88521), (4659, 33383), (4769, 32613), (5271, 29507), (10871, 14307)]