16821363

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{139}}^1$

素因数の和:291

約数の個数: 32

約数和(自身を含む): 25401600

約数和(自身を除く): 8580237

約数列:

[1, 3, 13, 29, 39, 87, 107, 139, 321, 377, 417, 1131, 1391, 1807, 3103, 4031, 4173, 5421, 9309, 12093, 14873, 40339, 44619, 52403, 121017, 157209, 193349, 431317, 580047, 1293951, 5607121, 16821363]

約数ペア:

[(1, 16821363), (3, 5607121), (13, 1293951), (29, 580047), (39, 431317), (87, 193349), (107, 157209), (139, 121017), (321, 52403), (377, 44619), (417, 40339), (1131, 14873), (1391, 12093), (1807, 9309), (3103, 5421), (4031, 4173)]