981917587

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1\times {\mathrm{1249}}^1$

素因数の和:1555

約数の個数: 32

約数和(自身を含む): 1238400000

約数和(自身を除く): 256482413

約数列:

[1, 7, 19, 23, 133, 161, 257, 437, 1249, 1799, 3059, 4883, 5911, 8743, 23731, 28727, 34181, 41377, 112309, 166117, 201089, 320993, 545813, 786163, 2246951, 3820691, 6098867, 7382839, 42692069, 51679873, 140273941, 981917587]

約数ペア:

[(1, 981917587), (7, 140273941), (19, 51679873), (23, 42692069), (133, 7382839), (161, 6098867), (257, 3820691), (437, 2246951), (1249, 786163), (1799, 545813), (3059, 320993), (4883, 201089), (5911, 166117), (8743, 112309), (23731, 41377), (28727, 34181)]