18968156

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{97}}^1$

素因数の和:234

約数の個数: 48

約数和(自身を含む): 36879360

約数和(自身を除く): 17911204

約数列:

[1, 2, 4, 19, 31, 38, 62, 76, 83, 97, 124, 166, 194, 332, 388, 589, 1178, 1577, 1843, 2356, 2573, 3007, 3154, 3686, 5146, 6014, 6308, 7372, 8051, 10292, 12028, 16102, 32204, 48887, 57133, 97774, 114266, 152969, 195548, 228532, 249581, 305938, 499162, 611876, 998324, 4742039, 9484078, 18968156]

約数ペア:

[(1, 18968156), (2, 9484078), (4, 4742039), (19, 998324), (31, 611876), (38, 499162), (62, 305938), (76, 249581), (83, 228532), (97, 195548), (124, 152969), (166, 114266), (194, 97774), (332, 57133), (388, 48887), (589, 32204), (1178, 16102), (1577, 12028), (1843, 10292), (2356, 8051), (2573, 7372), (3007, 6308), (3154, 6014), (3686, 5146)]