21388891994

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1\times {\mathrm{691}}^1\times {\mathrm{2311}}^1$

素因数の和:3222

約数の個数: 32

約数和(自身を含む): 33194808192

約数和(自身を除く): 11805916198

約数列:

[1, 2, 37, 74, 181, 362, 691, 1382, 2311, 4622, 6697, 13394, 25567, 51134, 85507, 125071, 171014, 250142, 418291, 836582, 1596901, 3193802, 4627627, 9255254, 15476767, 30953534, 59085337, 118170674, 289039081, 578078162, 10694445997, 21388891994]

約数ペア:

[(1, 21388891994), (2, 10694445997), (37, 578078162), (74, 289039081), (181, 118170674), (362, 59085337), (691, 30953534), (1382, 15476767), (2311, 9255254), (4622, 4627627), (6697, 3193802), (13394, 1596901), (25567, 836582), (51134, 418291), (85507, 250142), (125071, 171014)]