13978811

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{181}}^1$

素因数の和:275

約数の個数: 32

約数和(自身を含む): 18869760

約数和(自身を除く): 4890949

約数列:

[1, 7, 11, 17, 59, 77, 119, 181, 187, 413, 649, 1003, 1267, 1309, 1991, 3077, 4543, 7021, 10679, 11033, 13937, 21539, 33847, 74753, 77231, 117469, 181543, 236929, 822283, 1270801, 1996973, 13978811]

約数ペア:

[(1, 13978811), (7, 1996973), (11, 1270801), (17, 822283), (59, 236929), (77, 181543), (119, 117469), (181, 77231), (187, 74753), (413, 33847), (649, 21539), (1003, 13937), (1267, 11033), (1309, 10679), (1991, 7021), (3077, 4543)]