81704959

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{173}}^1$

素因数の和:319

約数の個数: 32

約数和(自身を含む): 102228480

約数和(自身を除く): 20523521

約数列:

[1, 7, 19, 53, 67, 133, 173, 371, 469, 1007, 1211, 1273, 3287, 3551, 7049, 8911, 9169, 11591, 23009, 24857, 64183, 67469, 81137, 174211, 220229, 472283, 614323, 1219477, 1541603, 4300261, 11672137, 81704959]

約数ペア:

[(1, 81704959), (7, 11672137), (19, 4300261), (53, 1541603), (67, 1219477), (133, 614323), (173, 472283), (371, 220229), (469, 174211), (1007, 81137), (1211, 67469), (1273, 64183), (3287, 24857), (3551, 23009), (7049, 11591), (8911, 9169)]