18241881

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{349}}^1$

素因数の和:509

約数の個数: 32

約数和(自身を含む): 29568000

約数和(自身を除く): 11326119

約数列:

[1, 3, 7, 19, 21, 57, 131, 133, 349, 393, 399, 917, 1047, 2443, 2489, 2751, 6631, 7329, 7467, 17423, 19893, 45719, 46417, 52269, 137157, 139251, 320033, 868661, 960099, 2605983, 6080627, 18241881]

約数ペア:

[(1, 18241881), (3, 6080627), (7, 2605983), (19, 960099), (21, 868661), (57, 320033), (131, 139251), (133, 137157), (349, 52269), (393, 46417), (399, 45719), (917, 19893), (1047, 17423), (2443, 7467), (2489, 7329), (2751, 6631)]