19131376

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1531}}^1$

素因数の和:1621

約数の個数: 40

約数和(自身を含む): 41033088

約数和(自身を除く): 21901712

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 71, 88, 142, 176, 284, 568, 781, 1136, 1531, 1562, 3062, 3124, 6124, 6248, 12248, 12496, 16841, 24496, 33682, 67364, 108701, 134728, 217402, 269456, 434804, 869608, 1195711, 1739216, 2391422, 4782844, 9565688, 19131376]

約数ペア:

[(1, 19131376), (2, 9565688), (4, 4782844), (8, 2391422), (11, 1739216), (16, 1195711), (22, 869608), (44, 434804), (71, 269456), (88, 217402), (142, 134728), (176, 108701), (284, 67364), (568, 33682), (781, 24496), (1136, 16841), (1531, 12496), (1562, 12248), (3062, 6248), (3124, 6124)]