213873021

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{479}}^1\times {\mathrm{719}}^1$

素因数の和:1230

約数の個数: 32

約数和(自身を含む): 331776000

約数和(自身を除く): 117902979

約数列:

[1, 3, 9, 23, 27, 69, 207, 479, 621, 719, 1437, 2157, 4311, 6471, 11017, 12933, 16537, 19413, 33051, 49611, 99153, 148833, 297459, 344401, 446499, 1033203, 3099609, 7921223, 9298827, 23763669, 71291007, 213873021]

約数ペア:

[(1, 213873021), (3, 71291007), (9, 23763669), (23, 9298827), (27, 7921223), (69, 3099609), (207, 1033203), (479, 446499), (621, 344401), (719, 297459), (1437, 148833), (2157, 99153), (4311, 49611), (6471, 33051), (11017, 19413), (12933, 16537)]