21469528036

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{727189}}^1$

素因数の和:727276

約数の個数: 36

約数和(自身を含む): 41974861180

約数和(自身を除く): 20505333144

約数列:

[1, 2, 4, 11, 22, 44, 61, 121, 122, 242, 244, 484, 671, 1342, 2684, 7381, 14762, 29524, 727189, 1454378, 2908756, 7999079, 15998158, 31996316, 44358529, 87989869, 88717058, 175979738, 177434116, 351959476, 487943819, 975887638, 1951775276, 5367382009, 10734764018, 21469528036]

約数ペア:

[(1, 21469528036), (2, 10734764018), (4, 5367382009), (11, 1951775276), (22, 975887638), (44, 487943819), (61, 351959476), (121, 177434116), (122, 175979738), (242, 88717058), (244, 87989869), (484, 44358529), (671, 31996316), (1342, 15998158), (2684, 7999079), (7381, 2908756), (14762, 1454378), (29524, 727189)]