39855179

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1$

素因数の和:172

約数の個数: 48

約数和(自身を含む): 54583200

約数和(自身を除く): 14728021

約数列:

[1, 7, 13, 19, 37, 49, 89, 91, 133, 247, 259, 481, 623, 637, 703, 931, 1157, 1691, 1729, 1813, 3293, 3367, 4361, 4921, 8099, 9139, 11837, 12103, 21983, 23051, 23569, 34447, 42809, 56693, 62567, 63973, 82859, 153881, 161357, 299663, 437969, 447811, 813371, 1077167, 2097641, 3065783, 5693597, 39855179]

約数ペア:

[(1, 39855179), (7, 5693597), (13, 3065783), (19, 2097641), (37, 1077167), (49, 813371), (89, 447811), (91, 437969), (133, 299663), (247, 161357), (259, 153881), (481, 82859), (623, 63973), (637, 62567), (703, 56693), (931, 42809), (1157, 34447), (1691, 23569), (1729, 23051), (1813, 21983), (3293, 12103), (3367, 11837), (4361, 9139), (4921, 8099)]