20121008523

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{89521}}^1$

素因数の和:89688

約数の個数: 48

約数和(自身を含む): 34290506880

約数和(自身を除く): 14169498357

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 139, 147, 231, 417, 539, 973, 1529, 1617, 2919, 4587, 6811, 10703, 20433, 32109, 74921, 89521, 224763, 268563, 626647, 984731, 1879941, 2954193, 4386529, 6893117, 12443419, 13159587, 20679351, 37330257, 48251819, 87103933, 136877609, 144755457, 261311799, 410632827, 609727531, 958143263, 1829182593, 2874429789, 6707002841, 20121008523]

約数ペア:

[(1, 20121008523), (3, 6707002841), (7, 2874429789), (11, 1829182593), (21, 958143263), (33, 609727531), (49, 410632827), (77, 261311799), (139, 144755457), (147, 136877609), (231, 87103933), (417, 48251819), (539, 37330257), (973, 20679351), (1529, 13159587), (1617, 12443419), (2919, 6893117), (4587, 4386529), (6811, 2954193), (10703, 1879941), (20433, 984731), (32109, 626647), (74921, 268563), (89521, 224763)]