20906116

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{659}}^1$

素因数の和:784

約数の個数: 48

約数和(自身を含む): 46126080

約数和(自身を除く): 25219964

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 103, 154, 206, 308, 412, 659, 721, 1133, 1318, 1442, 2266, 2636, 2884, 4532, 4613, 7249, 7931, 9226, 14498, 15862, 18452, 28996, 31724, 50743, 67877, 101486, 135754, 202972, 271508, 475139, 746647, 950278, 1493294, 1900556, 2986588, 5226529, 10453058, 20906116]

約数ペア:

[(1, 20906116), (2, 10453058), (4, 5226529), (7, 2986588), (11, 1900556), (14, 1493294), (22, 950278), (28, 746647), (44, 475139), (77, 271508), (103, 202972), (154, 135754), (206, 101486), (308, 67877), (412, 50743), (659, 31724), (721, 28996), (1133, 18452), (1318, 15862), (1442, 14498), (2266, 9226), (2636, 7931), (2884, 7249), (4532, 4613)]