20280491231

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{74761}}^1$

素因数の和:75063

約数の個数: 32

約数和(自身を含む): 27330594816

約数和(自身を除く): 7050103585

約数列:

[1, 7, 11, 13, 77, 91, 143, 271, 1001, 1897, 2981, 3523, 20867, 24661, 38753, 74761, 271271, 523327, 822371, 971893, 5756597, 6803251, 10690823, 20260231, 74835761, 141821617, 222862541, 263383003, 1560037787, 1843681021, 2897213033, 20280491231]

約数ペア:

[(1, 20280491231), (7, 2897213033), (11, 1843681021), (13, 1560037787), (77, 263383003), (91, 222862541), (143, 141821617), (271, 74835761), (1001, 20260231), (1897, 10690823), (2981, 6803251), (3523, 5756597), (20867, 971893), (24661, 822371), (38753, 523327), (74761, 271271)]