19672538

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:254

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 12260902

約数列:

[1, 2, 31, 41, 62, 71, 82, 109, 142, 218, 1271, 2201, 2542, 2911, 3379, 4402, 4469, 5822, 6758, 7739, 8938, 15478, 90241, 138539, 180482, 239909, 277078, 317299, 479818, 634598, 9836269, 19672538]

約数ペア:

[(1, 19672538), (2, 9836269), (31, 634598), (41, 479818), (62, 317299), (71, 277078), (82, 239909), (109, 180482), (142, 138539), (218, 90241), (1271, 15478), (2201, 8938), (2542, 7739), (2911, 6758), (3379, 5822), (4402, 4469)]