18191810

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19991}}^1$

素因数の和:20018

約数の個数: 32

約数和(自身を含む): 40303872

約数和(自身を除く): 22112062

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 19991, 39982, 99955, 139937, 199910, 259883, 279874, 519766, 699685, 1299415, 1399370, 1819181, 2598830, 3638362, 9095905, 18191810]

約数ペア:

[(1, 18191810), (2, 9095905), (5, 3638362), (7, 2598830), (10, 1819181), (13, 1399370), (14, 1299415), (26, 699685), (35, 519766), (65, 279874), (70, 259883), (91, 199910), (130, 139937), (182, 99955), (455, 39982), (910, 19991)]