21139935635

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{443}}^1\times {\mathrm{104879}}^1$

素因数の和:105347

約数の個数: 32

約数和(自身を含む): 31292835840

約数和(自身を除く): 10152900205

約数列:

[1, 5, 7, 13, 35, 65, 91, 443, 455, 2215, 3101, 5759, 15505, 28795, 40313, 104879, 201565, 524395, 734153, 1363427, 3670765, 6817135, 9543989, 46461397, 47719945, 232306985, 325229779, 603998161, 1626148895, 3019990805, 4227987127, 21139935635]

約数ペア:

[(1, 21139935635), (5, 4227987127), (7, 3019990805), (13, 1626148895), (35, 603998161), (65, 325229779), (91, 232306985), (443, 47719945), (455, 46461397), (2215, 9543989), (3101, 6817135), (5759, 3670765), (15505, 1363427), (28795, 734153), (40313, 524395), (104879, 201565)]