20974954

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{10477}}^1$

素因数の和:10510

約数の個数: 32

約数和(自身を含む): 42247296

約数和(自身を除く): 21272342

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 77, 91, 143, 154, 182, 286, 1001, 2002, 10477, 20954, 73339, 115247, 136201, 146678, 230494, 272402, 806729, 953407, 1498211, 1613458, 1906814, 2996422, 10487477, 20974954]

約数ペア:

[(1, 20974954), (2, 10487477), (7, 2996422), (11, 1906814), (13, 1613458), (14, 1498211), (22, 953407), (26, 806729), (77, 272402), (91, 230494), (143, 146678), (154, 136201), (182, 115247), (286, 73339), (1001, 20954), (2002, 10477)]